64944376 has 16 divisors (see below), whose sum is σ = 139166640. Its totient is φ = 27833280.

The previous prime is 64944367. The next prime is 64944379. The reversal of 64944376 is 67344946.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64944379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 579805 + ... + 579916.

It is an arithmetic number, because the mean of its divisors is an integer number (8697915).

Almost surely, 2^64944376 is an apocalyptic number.

It is an amenable number.

64944376 is an abundant number, since it is smaller than the sum of its proper divisors (74222264).

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

64944376 is a wasteful number, since it uses less digits than its factorization.

64944376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159734 (or 1159730 counting only the distinct ones).

The product of its digits is 435456, while the sum is 43.

The square root of 64944376 is about 8058.8073559305. The cubic root of 64944376 is about 401.9578514096.

The spelling of 64944376 in words is "sixty-four million, nine hundred forty-four thousand, three hundred seventy-six".