64312260 has 24 divisors (see below), whose sum is σ = 180074496. Its totient is φ = 17149920.

The previous prime is 64312229. The next prime is 64312279. The reversal of 64312260 is 6221346.

It is a self number, because there is not a number n which added to its sum of digits gives 64312260.

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, 535876 + ... + 535995.

It is an arithmetic number, because the mean of its divisors is an integer number (7503104).

Almost surely, 2^64312260 is an apocalyptic number.

64312260 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

64312260 is an abundant number, since it is smaller than the sum of its proper divisors (115762236).

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

64312260 is a wasteful number, since it uses less digits than its factorization.

64312260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071883 (or 1071881 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 64312260 is about 8019.4925026463. The cubic root of 64312260 is about 400.6494865141.

The spelling of 64312260 in words is "sixty-four million, three hundred twelve thousand, two hundred sixty".