44312913 has 20 divisors (see below), whose sum is σ = 66652608. Its totient is φ = 29338200.

The previous prime is 44312909. The next prime is 44312951. The reversal of 44312913 is 31921344.

It is not a de Polignac number, because 44312913 - 2² = 44312909 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (44312903) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10420 + ... + 14042.

Almost surely, 2^44312913 is an apocalyptic number.

It is an amenable number.

44312913 is a deficient number, since it is larger than the sum of its proper divisors (22339695).

44312913 is a wasteful number, since it uses less digits than its factorization.

44312913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3786 (or 3777 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 44312913 is about 6656.7944988560. The cubic root of 44312913 is about 353.8697452414.

The spelling of 44312913 in words is "forty-four million, three hundred twelve thousand, nine hundred thirteen".