44138680 has 16 divisors (see below), whose sum is σ = 99312120. Its totient is φ = 17655456.

The previous prime is 44138671. The next prime is 44138707. The reversal of 44138680 is 8683144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 551694 + ... + 551773.

Almost surely, 2^44138680 is an apocalyptic number.

44138680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44138680 is an abundant number, since it is smaller than the sum of its proper divisors (55173440).

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

44138680 is a wasteful number, since it uses less digits than its factorization.

44138680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103478 (or 1103474 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 44138680 is about 6643.6947551795. The cubic root of 44138680 is about 353.4053450789.

The spelling of 44138680 in words is "forty-four million, one hundred thirty-eight thousand, six hundred eighty".