157280670 has 256 divisors, whose sum is σ = 486604800. Its totient is φ = 35925120.

The previous prime is 157280657. The next prime is 157280687. The reversal of 157280670 is 76082751.

157280670 is a `hidden beast` number, since 1 + 572 + 80 + 6 + 7 + 0 = 666.

157280670 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3657669 + ... + 3657711.

It is an arithmetic number, because the mean of its divisors is an integer number (1900800).

Almost surely, 2^157280670 is an apocalyptic number.

157280670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 157280670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243302400).

157280670 is an abundant number, since it is smaller than the sum of its proper divisors (329324130).

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

157280670 is a wasteful number, since it uses less digits than its factorization.

157280670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 157280670 is about 12541.1590373458. The cubic root of 157280670 is about 539.7903507152.

The spelling of 157280670 in words is "one hundred fifty-seven million, two hundred eighty thousand, six hundred seventy".