290327664 has 40 divisors (see below), whose sum is σ = 818197632. Its totient is φ = 87977920.

The previous prime is 290327659. The next prime is 290327669. The reversal of 290327664 is 466723092.

It is an interprime number because it is at equal distance from previous prime (290327659) and next prime (290327669).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290327669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274404 + ... + 275459.

Almost surely, 2^290327664 is an apocalyptic number.

290327664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

290327664 is an abundant number, since it is smaller than the sum of its proper divisors (527869968).

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

290327664 is a wasteful number, since it uses less digits than its factorization.

290327664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549885 (or 549879 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 290327664 is about 17039.0041962551. The cubic root of 290327664 is about 662.1597932397.

The spelling of 290327664 in words is "two hundred ninety million, three hundred twenty-seven thousand, six hundred sixty-four".