157268280 has 128 divisors (see below), whose sum is σ = 515430720. Its totient is φ = 38154240.

The previous prime is 157268261. The next prime is 157268281. The reversal of 157268280 is 82862751.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157268281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113190 + ... + 114570.

Almost surely, 2^157268280 is an apocalyptic number.

157268280 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 157268280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257715360).

157268280 is an abundant number, since it is smaller than the sum of its proper divisors (358162440).

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

157268280 is a wasteful number, since it uses less digits than its factorization.

157268280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481 (or 1477 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 157268280 is about 12540.6650541349. The cubic root of 157268280 is about 539.7761761018.

The spelling of 157268280 in words is "one hundred fifty-seven million, two hundred sixty-eight thousand, two hundred eighty".