662538260 has 24 divisors (see below), whose sum is σ = 1392183240. Its totient is φ = 264852864.

The previous prime is 662538259. The next prime is 662538307. The reversal of 662538260 is 62835266.

It can be written as a sum of positive squares in 4 ways, for example, as 142515844 + 520022416 = 11938^2 + 22804^2 .

It is a congruent number.

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, 26522 + ... + 45038.

It is an arithmetic number, because the mean of its divisors is an integer number (58007635).

Almost surely, 2^662538260 is an apocalyptic number.

It is an amenable number.

662538260 is an abundant number, since it is smaller than the sum of its proper divisors (729644980).

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

662538260 is a wasteful number, since it uses less digits than its factorization.

662538260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20315 (or 20313 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 662538260 is about 25739.8185696792. The cubic root of 662538260 is about 871.7734819001.

The spelling of 662538260 in words is "six hundred sixty-two million, five hundred thirty-eight thousand, two hundred sixty".