157878744 has 16 divisors (see below), whose sum is σ = 394696920. Its totient is φ = 52626240.

The previous prime is 157878731. The next prime is 157878751. The reversal of 157878744 is 447878751.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3289117 + ... + 3289164.

Almost surely, 2^157878744 is an apocalyptic number.

It is an amenable number.

157878744 is an abundant number, since it is smaller than the sum of its proper divisors (236818176).

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

157878744 is a wasteful number, since it uses less digits than its factorization.

157878744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6578290 (or 6578286 counting only the distinct ones).

The product of its digits is 1756160, while the sum is 51.

The square root of 157878744 is about 12564.9808595159. The cubic root of 157878744 is about 540.4736858720.

It can be divided in two parts, 15787 and 8744, that added together give a triangular number (24531 = T₂₂₁).

The spelling of 157878744 in words is "one hundred fifty-seven million, eight hundred seventy-eight thousand, seven hundred forty-four".