44157985 has 8 divisors (see below), whose sum is σ = 53130240. Its totient is φ = 35232624.

The previous prime is 44157979. The next prime is 44158001. The reversal of 44157985 is 58975144.

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 44157985 - 2²¹ = 42060833 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9615 + ... + 13444.

It is an arithmetic number, because the mean of its divisors is an integer number (6641280).

Almost surely, 2^44157985 is an apocalyptic number.

It is an amenable number.

44157985 is a deficient number, since it is larger than the sum of its proper divisors (8972255).

44157985 is a wasteful number, since it uses less digits than its factorization.

44157985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23447.

The product of its digits is 201600, while the sum is 43.

The square root of 44157985 is about 6645.1474776712. The cubic root of 44157985 is about 353.4568607092.

The spelling of 44157985 in words is "forty-four million, one hundred fifty-seven thousand, nine hundred eighty-five".