64402260 has 48 divisors (see below), whose sum is σ = 194199936. Its totient is φ = 15852672.

The previous prime is 64402259. The next prime is 64402271. The reversal of 64402260 is 6220446.

It is a self number, because there is not a number n which added to its sum of digits gives 64402260.

It is a congruent 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, 40504 + ... + 42063.

It is an arithmetic number, because the mean of its divisors is an integer number (4045832).

Almost surely, 2^64402260 is an apocalyptic number.

64402260 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64402260 is an abundant number, since it is smaller than the sum of its proper divisors (129797676).

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

64402260 is a wasteful number, since it uses less digits than its factorization.

64402260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82592 (or 82590 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 64402260 is about 8025.1018685123. The cubic root of 64402260 is about 400.8362919874.

The spelling of 64402260 in words is "sixty-four million, four hundred two thousand, two hundred sixty".