290628932 has 36 divisors (see below), whose sum is σ = 574184940. Its totient is φ = 128525760.

The previous prime is 290628929. The next prime is 290628941. The reversal of 290628932 is 239826092.

It can be written as a sum of positive squares in 2 ways, for example, as 273703936 + 16924996 = 16544^2 + 4114^2 .

It is a super-2 number, since 2×290628932² = 168930352230921248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 290628932.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9794 + ... + 26022.

Almost surely, 2^290628932 is an apocalyptic number.

290628932 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

290628932 is a deficient number, since it is larger than the sum of its proper divisors (283556008).

290628932 is a wasteful number, since it uses less digits than its factorization.

290628932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16292 (or 16279 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 290628932 is about 17047.8424441335. The cubic root of 290628932 is about 662.3887513211.

The spelling of 290628932 in words is "two hundred ninety million, six hundred twenty-eight thousand, nine hundred thirty-two".