652281890 has 32 divisors (see below), whose sum is σ = 1278653040. Its totient is φ = 238132224.

The previous prime is 652281887. The next prime is 652281941. The reversal of 652281890 is 98182256.

It can be written as a sum of positive squares in 8 ways, for example, as 552049 + 651729841 = 743^2 + 25529^2 .

It is a Curzon number.

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, 16619 + ... + 39758.

Almost surely, 2^652281890 is an apocalyptic number.

652281890 is a deficient number, since it is larger than the sum of its proper divisors (626371150).

652281890 is a wasteful number, since it uses less digits than its factorization.

652281890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56486.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 652281890 is about 25539.8099053223. The cubic root of 652281890 is about 867.2515944499.

The spelling of 652281890 in words is "six hundred fifty-two million, two hundred eighty-one thousand, eight hundred ninety".