652290990 has 48 divisors (see below), whose sum is σ = 1695197808. Its totient is φ = 160562688.

The previous prime is 652290979. The next prime is 652291001. The reversal of 652290990 is 99092256.

It is an interprime number because it is at equal distance from previous prime (652290979) and next prime (652291001).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59259 + ... + 69398.

It is an arithmetic number, because the mean of its divisors is an integer number (35316621).

Almost surely, 2^652290990 is an apocalyptic number.

652290990 is an abundant number, since it is smaller than the sum of its proper divisors (1042906818).

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

652290990 is a wasteful number, since it uses less digits than its factorization.

652290990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128693 (or 128680 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 42.

The square root of 652290990 is about 25539.9880579455. The cubic root of 652290990 is about 867.2556274470.

The spelling of 652290990 in words is "six hundred fifty-two million, two hundred ninety thousand, nine hundred ninety".