157864280 has 96 divisors (see below), whose sum is σ = 416145600. Its totient is φ = 53738496.

The previous prime is 157864253. The next prime is 157864283. The reversal of 157864280 is 82468751.

It is a super-2 number, since 2×157864280² = 49842261799836800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157864283) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 468272 + ... + 468608.

It is an arithmetic number, because the mean of its divisors is an integer number (4334850).

Almost surely, 2^157864280 is an apocalyptic number.

157864280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157864280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208072800).

157864280 is an abundant number, since it is smaller than the sum of its proper divisors (258281320).

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

157864280 is a wasteful number, since it uses less digits than its factorization.

157864280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601 (or 590 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 157864280 is about 12564.4052784045. The cubic root of 157864280 is about 540.4571802722.

The spelling of 157864280 in words is "one hundred fifty-seven million, eight hundred sixty-four thousand, two hundred eighty".