44005157 has 4 divisors (see below), whose sum is σ = 50291616. Its totient is φ = 37718700.

The previous prime is 44005147. The next prime is 44005193. The reversal of 44005157 is 75150044.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44005157 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 (44005147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3143219 + ... + 3143232.

It is an arithmetic number, because the mean of its divisors is an integer number (12572904).

Almost surely, 2^44005157 is an apocalyptic number.

It is an amenable number.

44005157 is a deficient number, since it is larger than the sum of its proper divisors (6286459).

44005157 is an equidigital number, since it uses as much as digits as its factorization.

44005157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6286458.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 44005157 is about 6633.6382928224. The cubic root of 44005157 is about 353.0486254229.

The spelling of 44005157 in words is "forty-four million, five thousand, one hundred fifty-seven".