44431428 has 24 divisors (see below), whose sum is σ = 103990432. Its totient is φ = 14765184.

The previous prime is 44431351. The next prime is 44431441. The reversal of 44431428 is 82413444.

It is a junction number, because it is equal to n+sod(n) for n = 44431395 and 44431404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1450 + ... + 9537.

Almost surely, 2^44431428 is an apocalyptic number.

It is an amenable number.

44431428 is an abundant number, since it is smaller than the sum of its proper divisors (59559004).

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

44431428 is a wasteful number, since it uses less digits than its factorization.

44431428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11331 (or 11329 counting only the distinct ones).

The product of its digits is 12288, while the sum is 30.

The square root of 44431428 is about 6665.6903618455. The cubic root of 44431428 is about 354.1849395939.

The spelling of 44431428 in words is "forty-four million, four hundred thirty-one thousand, four hundred twenty-eight".