157257480 has 128 divisors (see below), whose sum is σ = 503729280. Its totient is φ = 39137280.

The previous prime is 157257473. The next prime is 157257481. The reversal of 157257480 is 84752751.

157257480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (157257481) 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, 320035 + ... + 320525.

It is an arithmetic number, because the mean of its divisors is an integer number (3935385).

Almost surely, 2^157257480 is an apocalyptic number.

157257480 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 157257480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251864640).

157257480 is an abundant number, since it is smaller than the sum of its proper divisors (346471800).

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

157257480 is a wasteful number, since it uses less digits than its factorization.

157257480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679 (or 675 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 39.

The square root of 157257480 is about 12540.2344475692. The cubic root of 157257480 is about 539.7638198993.

The spelling of 157257480 in words is "one hundred fifty-seven million, two hundred fifty-seven thousand, four hundred eighty".