356139690 has 16 divisors (see below), whose sum is σ = 854735328. Its totient is φ = 94970576.

The previous prime is 356139683. The next prime is 356139709. The reversal of 356139690 is 96931653.

It is a super-2 number, since 2×356139690² = 253670957586592200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5935632 + ... + 5935691.

It is an arithmetic number, because the mean of its divisors is an integer number (53420958).

Almost surely, 2^356139690 is an apocalyptic number.

356139690 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

356139690 is an abundant number, since it is smaller than the sum of its proper divisors (498595638).

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

356139690 is a wasteful number, since it uses less digits than its factorization.

356139690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11871333.

The product of its (nonzero) digits is 131220, while the sum is 42.

The square root of 356139690 is about 18871.6636786479. The cubic root of 356139690 is about 708.8267935292.

The spelling of 356139690 in words is "three hundred fifty-six million, one hundred thirty-nine thousand, six hundred ninety".