290630832 has 80 divisors (see below), whose sum is σ = 769450752. Its totient is φ = 94501120.

The previous prime is 290630807. The next prime is 290630849. The reversal of 290630832 is 238036092.

It is a junction number, because it is equal to n+sod(n) for n = 290630793 and 290630802.

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, 364258 + ... + 365054.

Almost surely, 2^290630832 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 290630832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (384725376).

290630832 is an abundant number, since it is smaller than the sum of its proper divisors (478819920).

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

290630832 is a wasteful number, since it uses less digits than its factorization.

290630832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986 (or 980 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 290630832 is about 17047.8981695692. The cubic root of 290630832 is about 662.3901947836.

The spelling of 290630832 in words is "two hundred ninety million, six hundred thirty thousand, eight hundred thirty-two".