902921130 has 48 divisors (see below), whose sum is σ = 2362584744. Its totient is φ = 239241600.

The previous prime is 902921087. The next prime is 902921141. The reversal of 902921130 is 31129209.

It can be written as a sum of positive squares in 4 ways, for example, as 825815169 + 77105961 = 28737^2 + 8781^2 .

It is a junction number, because it is equal to n+sod(n) for n = 902921094 and 902921103.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17821 + ... + 46080.

Almost surely, 2^902921130 is an apocalyptic number.

902921130 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

902921130 is an abundant number, since it is smaller than the sum of its proper divisors (1459663614).

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

902921130 is a wasteful number, since it uses less digits than its factorization.

902921130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64071 (or 64068 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 902921130 is about 30048.6460593485. The cubic root of 902921130 is about 966.5328194915.

The spelling of 902921130 in words is "nine hundred two million, nine hundred twenty-one thousand, one hundred thirty".