1164222240 has 96 divisors (see below), whose sum is σ = 3678224256. Its totient is φ = 309534720.

The previous prime is 1164222239. The next prime is 1164222307. The reversal of 1164222240 is 422224611.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×1164222240² = 2710826848221235200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1164222240.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166005 + ... + 172875.

It is an arithmetic number, because the mean of its divisors is an integer number (38314836).

Almost surely, 2^1164222240 is an apocalyptic number.

1164222240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1164222240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1839112128).

1164222240 is an abundant number, since it is smaller than the sum of its proper divisors (2514002016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1164222240 is a wasteful number, since it uses less digits than its factorization.

1164222240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7242 (or 7234 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 1164222240 is about 34120.7010478976. The cubic root of 1164222240 is about 1051.9908532411.

Adding to 1164222240 its reverse (422224611), we get a palindrome (1586446851).

The spelling of 1164222240 in words is "one billion, one hundred sixty-four million, two hundred twenty-two thousand, two hundred forty".