157345740 has 60 divisors (see below), whose sum is σ = 493604496. Its totient is φ = 41958432.

The previous prime is 157345703. The next prime is 157345763. The reversal of 157345740 is 47543751.

157345740 = T₉ + T₁₀ + ... + T₉₈₀.

It is a happy number.

157345740 is a `hidden beast` number, since 1 + 57 + 34 + 574 + 0 = 666.

157345740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×157345740² = 49515363792295200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 157345695 and 157345704.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 46944 + ... + 50183.

Almost surely, 2^157345740 is an apocalyptic number.

157345740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157345740 is an abundant number, since it is smaller than the sum of its proper divisors (336258756).

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

157345740 is a wasteful number, since it uses less digits than its factorization.

157345740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97148 (or 97137 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 157345740 is about 12543.7530269055. The cubic root of 157345740 is about 539.8647809580.

The spelling of 157345740 in words is "one hundred fifty-seven million, three hundred forty-five thousand, seven hundred forty".