44739389 has 4 divisors (see below), whose sum is σ = 45173856. Its totient is φ = 44304924.

The previous prime is 44739371. The next prime is 44739391. The reversal of 44739389 is 98393744.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 44739389 - 2²⁴ = 27962173 is a prime.

It is a super-2 number, since 2×44739389² = 4003225856186642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44739329) 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, 217079 + ... + 217284.

It is an arithmetic number, because the mean of its divisors is an integer number (11293464).

Almost surely, 2^44739389 is an apocalyptic number.

It is an amenable number.

44739389 is a deficient number, since it is larger than the sum of its proper divisors (434467).

44739389 is a wasteful number, since it uses less digits than its factorization.

44739389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434466.

The product of its digits is 653184, while the sum is 47.

The square root of 44739389 is about 6688.7509297327. The cubic root of 44739389 is about 355.0013595134.

The spelling of 44739389 in words is "forty-four million, seven hundred thirty-nine thousand, three hundred eighty-nine".