1000045956 has 96 divisors (see below), whose sum is σ = 2919202048. Its totient is φ = 259407360.

The previous prime is 1000045909. The next prime is 1000045973. The reversal of 1000045956 is 6595400001.

It is a super-2 number, since 2×1000045956² = 2000183828223907872, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59106 + ... + 74118.

Almost surely, 2^1000045956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1000045956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1459601024).

1000045956 is an abundant number, since it is smaller than the sum of its proper divisors (1919156092).

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

1000045956 is a wasteful number, since it uses less digits than its factorization.

1000045956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15101 (or 15099 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 1000045956 is about 31623.5032214965. The cubic root of 1000045956 is about 1000.0153184320.

Adding to 1000045956 its reverse (6595400001), we get a palindrome (7595445957).

It can be divided in two parts, 1000045 and 956, that added together give a palindrome (1001001).

The spelling of 1000045956 in words is "one billion, forty-five thousand, nine hundred fifty-six".