157847920 has 40 divisors (see below), whose sum is σ = 376922304. Its totient is φ = 61431552.

The previous prime is 157847917. The next prime is 157847927. The reversal of 157847920 is 29748751.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157847927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23704 + ... + 29623.

Almost surely, 2^157847920 is an apocalyptic number.

157847920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157847920 is an abundant number, since it is smaller than the sum of its proper divisors (219074384).

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

157847920 is a wasteful number, since it uses less digits than its factorization.

157847920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53377 (or 53371 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 157847920 is about 12563.7542159977. The cubic root of 157847920 is about 540.4385098359.

The spelling of 157847920 in words is "one hundred fifty-seven million, eight hundred forty-seven thousand, nine hundred twenty".