44138957 has 8 divisors (see below), whose sum is σ = 48064800. Its totient is φ = 40373424.

The previous prime is 44138923. The next prime is 44138989. The reversal of 44138957 is 75983144.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 44138957 - 2⁶ = 44138893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44138917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39503 + ... + 40604.

It is an arithmetic number, because the mean of its divisors is an integer number (6008100).

Almost surely, 2^44138957 is an apocalyptic number.

It is an amenable number.

44138957 is a deficient number, since it is larger than the sum of its proper divisors (3925843).

44138957 is a wasteful number, since it uses less digits than its factorization.

44138957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80155.

The product of its digits is 120960, while the sum is 41.

The square root of 44138957 is about 6643.7156019806. The cubic root of 44138957 is about 353.4060843630.

The spelling of 44138957 in words is "forty-four million, one hundred thirty-eight thousand, nine hundred fifty-seven".