44428907 has 4 divisors (see below), whose sum is σ = 44462640. Its totient is φ = 44395176.

The previous prime is 44428903. The next prime is 44428919. The reversal of 44428907 is 70982444.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 44428907 - 2² = 44428903 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44428903) 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, 14807 + ... + 17552.

It is an arithmetic number, because the mean of its divisors is an integer number (11115660).

Almost surely, 2^44428907 is an apocalyptic number.

44428907 is a deficient number, since it is larger than the sum of its proper divisors (33733).

44428907 is a wasteful number, since it uses less digits than its factorization.

44428907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33732.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 44428907 is about 6665.5012564698. The cubic root of 44428907 is about 354.1782407536.

The spelling of 44428907 in words is "forty-four million, four hundred twenty-eight thousand, nine hundred seven".