1164546440 has 32 divisors (see below), whose sum is σ = 2651806080. Its totient is φ = 460204992.

The previous prime is 1164546433. The next prime is 1164546457. The reversal of 1164546440 is 446454611.

It is a self number, because there is not a number n which added to its sum of digits gives 1164546440.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172064 + ... + 178703.

It is an arithmetic number, because the mean of its divisors is an integer number (82868940).

Almost surely, 2^1164546440 is an apocalyptic number.

1164546440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1164546440 is an abundant number, since it is smaller than the sum of its proper divisors (1487259640).

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

1164546440 is a wasteful number, since it uses less digits than its factorization.

1164546440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350861 (or 350857 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 35.

The square root of 1164546440 is about 34125.4514988447. The cubic root of 1164546440 is about 1052.0884931847.

It can be divided in two parts, 11645 and 46440, that added together give a palindrome (58085).

The spelling of 1164546440 in words is "one billion, one hundred sixty-four million, five hundred forty-six thousand, four hundred forty".