64670244 has 24 divisors (see below), whose sum is σ = 159774048. Its totient is φ = 20288640.

The previous prime is 64670233. The next prime is 64670251. The reversal of 64670244 is 44207646.

64670244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158302 + ... + 158709.

It is an arithmetic number, because the mean of its divisors is an integer number (6657252).

Almost surely, 2^64670244 is an apocalyptic number.

It is an amenable number.

64670244 is an abundant number, since it is smaller than the sum of its proper divisors (95103804).

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

64670244 is a wasteful number, since it uses less digits than its factorization.

64670244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317035 (or 317033 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 64670244 is about 8041.7811459900. The cubic root of 64670244 is about 401.3914954049.

The spelling of 64670244 in words is "sixty-four million, six hundred seventy thousand, two hundred forty-four".