290131056 has 30 divisors (see below), whose sum is σ = 811964400. Its totient is φ = 96710304.

The previous prime is 290131033. The next prime is 290131069. The reversal of 290131056 is 650131092.

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 1007256 + ... + 1007543.

It is an arithmetic number, because the mean of its divisors is an integer number (27065480).

Almost surely, 2^290131056 is an apocalyptic number.

It is an amenable number.

290131056 is an abundant number, since it is smaller than the sum of its proper divisors (521833344).

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

290131056 is a wasteful number, since it uses less digits than its factorization.

290131056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2014813 (or 2014804 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 290131056 is about 17033.2338679418. The cubic root of 290131056 is about 662.0102893896.

The spelling of 290131056 in words is "two hundred ninety million, one hundred thirty-one thousand, fifty-six".