64343660 has 24 divisors (see below), whose sum is σ = 136975776. Its totient is φ = 25384320.

The previous prime is 64343647. The next prime is 64343677. The reversal of 64343660 is 6634346.

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, 20576 + ... + 23495.

It is an arithmetic number, because the mean of its divisors is an integer number (5707324).

Almost surely, 2^64343660 is an apocalyptic number.

It is an amenable number.

64343660 is an abundant number, since it is smaller than the sum of its proper divisors (72632116).

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

64343660 is a wasteful number, since it uses less digits than its factorization.

64343660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44153 (or 44151 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 32.

The square root of 64343660 is about 8021.4499936109. The cubic root of 64343660 is about 400.7146806518.

The spelling of 64343660 in words is "sixty-four million, three hundred forty-three thousand, six hundred sixty".