1045555756 has 48 divisors (see below), whose sum is σ = 2133331200. Its totient is φ = 439098048.

The previous prime is 1045555747. The next prime is 1045555789. The reversal of 1045555756 is 6575555401.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 641815 + ... + 643441.

It is an arithmetic number, because the mean of its divisors is an integer number (44444400).

Almost surely, 2^1045555756 is an apocalyptic number.

It is an amenable number.

1045555756 is an abundant number, since it is smaller than the sum of its proper divisors (1087775444).

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

1045555756 is a wasteful number, since it uses less digits than its factorization.

1045555756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2086 (or 2084 counting only the distinct ones).

The product of its (nonzero) digits is 525000, while the sum is 43.

The square root of 1045555756 is about 32335.0546002322. The cubic root of 1045555756 is about 1014.9603245915.

The spelling of 1045555756 in words is "one billion, forty-five million, five hundred fifty-five thousand, seven hundred fifty-six".