64400682 has 16 divisors (see below), whose sum is σ = 129097440. Its totient is φ = 21417552.

The previous prime is 64400663. The next prime is 64400717. The reversal of 64400682 is 28600446.

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, 9457 + ... + 14772.

It is an arithmetic number, because the mean of its divisors is an integer number (8068590).

Almost surely, 2^64400682 is an apocalyptic number.

64400682 is an abundant number, since it is smaller than the sum of its proper divisors (64696758).

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

64400682 is a wasteful number, since it uses less digits than its factorization.

64400682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24677.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 64400682 is about 8025.0035514011. The cubic root of 64400682 is about 400.8330181642.

The spelling of 64400682 in words is "sixty-four million, four hundred thousand, six hundred eighty-two".