157718044 has 24 divisors (see below), whose sum is σ = 318811248. Its totient is φ = 67472640.

The previous prime is 157718017. The next prime is 157718053. The reversal of 157718044 is 440817751.

It is a junction number, because it is equal to n+sod(n) for n = 157717994 and 157718012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104679 + ... + 106174.

It is an arithmetic number, because the mean of its divisors is an integer number (13283802).

Almost surely, 2^157718044 is an apocalyptic number.

It is an amenable number.

157718044 is an abundant number, since it is smaller than the sum of its proper divisors (161093204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157718044 is a wasteful number, since it uses less digits than its factorization.

157718044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210885 (or 210883 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 37.

The square root of 157718044 is about 12558.5844743745. The cubic root of 157718044 is about 540.2902463443.

It can be divided in two parts, 157 and 718044, that added together give a triangular number (718201 = T₁₁₉₈).

The spelling of 157718044 in words is "one hundred fifty-seven million, seven hundred eighteen thousand, forty-four".