44140657 has 8 divisors (see below), whose sum is σ = 50247360. Its totient is φ = 38382960.

The previous prime is 44140633. The next prime is 44140717. The reversal of 44140657 is 75604144.

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

It is a de Polignac number, because none of the positive numbers 2^k-44140657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44140627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86982 + ... + 87487.

It is an arithmetic number, because the mean of its divisors is an integer number (6280920).

Almost surely, 2^44140657 is an apocalyptic number.

It is an amenable number.

44140657 is a deficient number, since it is larger than the sum of its proper divisors (6106703).

44140657 is a wasteful number, since it uses less digits than its factorization.

44140657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174503.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 44140657 is about 6643.8435412041. The cubic root of 44140657 is about 353.4106214180.

The spelling of 44140657 in words is "forty-four million, one hundred forty thousand, six hundred fifty-seven".