290732464 has 40 divisors (see below), whose sum is σ = 619388928. Its totient is φ = 131100480.

The previous prime is 290732447. The next prime is 290732467. The reversal of 290732464 is 464237092.

It is a super-2 number, since 2×290732464² = 169050731247022592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (290732467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15849 + ... + 28855.

Almost surely, 2^290732464 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 290732464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (309694464).

290732464 is an abundant number, since it is smaller than the sum of its proper divisors (328656464).

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

290732464 is a wasteful number, since it uses less digits than its factorization.

290732464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13153 (or 13147 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 37.

The square root of 290732464 is about 17050.8786870355. The cubic root of 290732464 is about 662.4673971852.

The spelling of 290732464 in words is "two hundred ninety million, seven hundred thirty-two thousand, four hundred sixty-four".