157746620 has 24 divisors (see below), whose sum is σ = 332992464. Its totient is φ = 62770176.

The previous prime is 157746571. The next prime is 157746623. The reversal of 157746620 is 26647751.

157746620 is digitally balanced in base 2, base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×157746620² = 49767992242848800, which contains 22 as substring.

157746620 is strictly pandigital in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157746623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16574 + ... + 24293.

It is an arithmetic number, because the mean of its divisors is an integer number (13874686).

Almost surely, 2^157746620 is an apocalyptic number.

157746620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157746620 is an abundant number, since it is smaller than the sum of its proper divisors (175245844).

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

157746620 is a wasteful number, since it uses less digits than its factorization.

157746620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41069 (or 41067 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 157746620 is about 12559.7221306843. The cubic root of 157746620 is about 540.3228750390.

The spelling of 157746620 in words is "one hundred fifty-seven million, seven hundred forty-six thousand, six hundred twenty".