44891157 has 8 divisors (see below), whose sum is σ = 61128576. Its totient is φ = 29290592.

The previous prime is 44891149. The next prime is 44891191. The reversal of 44891157 is 75119844.

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 44891157 - 2³ = 44891149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44891117) 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, 159048 + ... + 159329.

It is an arithmetic number, because the mean of its divisors is an integer number (7641072).

Almost surely, 2^44891157 is an apocalyptic number.

44891157 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

44891157 is a deficient number, since it is larger than the sum of its proper divisors (16237419).

44891157 is a wasteful number, since it uses less digits than its factorization.

44891157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318427.

The product of its digits is 40320, while the sum is 39.

The square root of 44891157 is about 6700.0863427272. The cubic root of 44891157 is about 355.4023263824.

The spelling of 44891157 in words is "forty-four million, eight hundred ninety-one thousand, one hundred fifty-seven".