290887152 has 20 divisors (see below), whose sum is σ = 751458600. Its totient is φ = 96962368.

The previous prime is 290887127. The next prime is 290887159. The reversal of 290887152 is 251788092.

It is a super-2 number, since 2×290887152² = 169230670397342208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290887159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3030027 + ... + 3030122.

It is an arithmetic number, because the mean of its divisors is an integer number (37572930).

Almost surely, 2^290887152 is an apocalyptic number.

It is an amenable number.

290887152 is an abundant number, since it is smaller than the sum of its proper divisors (460571448).

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

290887152 is a wasteful number, since it uses less digits than its factorization.

290887152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6060160 (or 6060154 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 290887152 is about 17055.4141550418. The cubic root of 290887152 is about 662.5848678272.

The spelling of 290887152 in words is "two hundred ninety million, eight hundred eighty-seven thousand, one hundred fifty-two".