290615252 has 12 divisors (see below), whose sum is σ = 509317536. Its totient is φ = 145095960.

The previous prime is 290615249. The next prime is 290615329. The reversal of 290615252 is 252516092.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49808 + ... + 55335.

It is an arithmetic number, because the mean of its divisors is an integer number (42443128).

Almost surely, 2^290615252 is an apocalyptic number.

It is an amenable number.

290615252 is a deficient number, since it is larger than the sum of its proper divisors (218702284).

290615252 is a wasteful number, since it uses less digits than its factorization.

290615252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105838 (or 105836 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 290615252 is about 17047.4412156194. The cubic root of 290615252 is about 662.3783582054.

The spelling of 290615252 in words is "two hundred ninety million, six hundred fifteen thousand, two hundred fifty-two".