290087232 has 112 divisors (see below), whose sum is σ = 809792640. Its totient is φ = 91506688.

The previous prime is 290087207. The next prime is 290087257. The reversal of 290087232 is 232780092.

It is an interprime number because it is at equal distance from previous prime (290087207) and next prime (290087257).

It is a junction number, because it is equal to n+sod(n) for n = 290087193 and 290087202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294613 + ... + 295595.

Almost surely, 2^290087232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 290087232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (404896320).

290087232 is an abundant number, since it is smaller than the sum of its proper divisors (519705408).

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

290087232 is a wasteful number, since it uses less digits than its factorization.

290087232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080 (or 1070 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 290087232 is about 17031.9473930611. The cubic root of 290087232 is about 661.9769557183.

The spelling of 290087232 in words is "two hundred ninety million, eighty-seven thousand, two hundred thirty-two".