44474139 has 24 divisors (see below), whose sum is σ = 67289040. Its totient is φ = 28268352.

The previous prime is 44474137. The next prime is 44474147. The reversal of 44474139 is 93147444.

It is not a de Polignac number, because 44474139 - 2¹ = 44474137 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44474137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20637 + ... + 22689.

It is an arithmetic number, because the mean of its divisors is an integer number (2803710).

Almost surely, 2^44474139 is an apocalyptic number.

44474139 is a deficient number, since it is larger than the sum of its proper divisors (22814901).

44474139 is a wasteful number, since it uses less digits than its factorization.

44474139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2171 (or 2168 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 44474139 is about 6668.8933864623. The cubic root of 44474139 is about 354.2983934331.

The spelling of 44474139 in words is "forty-four million, four hundred seventy-four thousand, one hundred thirty-nine".