653232290 has 16 divisors (see below), whose sum is σ = 1176632568. Its totient is φ = 261111936.

The previous prime is 653232271. The next prime is 653232301. The reversal of 653232290 is 92232356.

653232290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 607277449 + 45954841 = 24643^2 + 6779^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6947 + ... + 36806.

Almost surely, 2^653232290 is an apocalyptic number.

653232290 is a deficient number, since it is larger than the sum of its proper divisors (523400278).

653232290 is a wasteful number, since it uses less digits than its factorization.

653232290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45253.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 653232290 is about 25558.4093793021. The cubic root of 653232290 is about 867.6725964416.

The spelling of 653232290 in words is "six hundred fifty-three million, two hundred thirty-two thousand, two hundred ninety".