157973620 has 24 divisors (see below), whose sum is σ = 379137024. Its totient is φ = 54162336.

The previous prime is 157973611. The next prime is 157973659. The reversal of 157973620 is 26379751.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564052 + ... + 564331.

It is an arithmetic number, because the mean of its divisors is an integer number (15797376).

Almost surely, 2^157973620 is an apocalyptic number.

157973620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157973620 is an abundant number, since it is smaller than the sum of its proper divisors (221163404).

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

157973620 is a wasteful number, since it uses less digits than its factorization.

157973620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1128399 (or 1128397 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 40.

The square root of 157973620 is about 12568.7557061151. The cubic root of 157973620 is about 540.5819286746.

The spelling of 157973620 in words is "one hundred fifty-seven million, nine hundred seventy-three thousand, six hundred twenty".