1162321440 has 192 divisors, whose sum is σ = 4319723520. Its totient is φ = 257080320.

The previous prime is 1162321373. The next prime is 1162321487. The reversal of 1162321440 is 441232611.

It is a super-2 number, since 2×1162321440² = 2701982259767347200, 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 1162321440.

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 31 ways as a sum of consecutive naturals, for example, 98581 + ... + 109739.

It is an arithmetic number, because the mean of its divisors is an integer number (22498560).

Almost surely, 2^1162321440 is an apocalyptic number.

1162321440 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 1162321440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2159861760).

1162321440 is an abundant number, since it is smaller than the sum of its proper divisors (3157402080).

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

1162321440 is a wasteful number, since it uses less digits than its factorization.

1162321440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11215 (or 11207 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 1162321440 is about 34092.8356110195. The cubic root of 1162321440 is about 1051.4180206149.

The spelling of 1162321440 in words is "one billion, one hundred sixty-two million, three hundred twenty-one thousand, four hundred forty".