1165904472 has 32 divisors (see below), whose sum is σ = 3086218800. Its totient is φ = 365773824.

The previous prime is 1165904449. The next prime is 1165904473. The reversal of 1165904472 is 2744095611.

It is a self number, because there is not a number n which added to its sum of digits gives 1165904472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1165904473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1428397 + ... + 1429212.

Almost surely, 2^1165904472 is an apocalyptic number.

1165904472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1165904472 is an abundant number, since it is smaller than the sum of its proper divisors (1920314328).

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

1165904472 is a wasteful number, since it uses less digits than its factorization.

1165904472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2857635 (or 2857631 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 1165904472 is about 34145.3433428337. The cubic root of 1165904472 is about 1052.4972974957.

The spelling of 1165904472 in words is "one billion, one hundred sixty-five million, nine hundred four thousand, four hundred seventy-two".