44979864 has 40 divisors (see below), whose sum is σ = 115573260. Its totient is φ = 14588064.

The previous prime is 44979863. The next prime is 44979871. The reversal of 44979864 is 46897944.

44979864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Its product of digits (1741824) is a multiple of the sum of its prime divisors (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44979863) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 1215654 + ... + 1215690.

Almost surely, 2^44979864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 44979864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57786630).

44979864 is an abundant number, since it is smaller than the sum of its proper divisors (70593396).

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

44979864 is an frugal number, since it uses more digits than its factorization.

44979864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 42 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 51.

The square root of 44979864 is about 6706.7029157403. The cubic root of 44979864 is about 355.6362694942.

The spelling of 44979864 in words is "forty-four million, nine hundred seventy-nine thousand, eight hundred sixty-four".