157857480 has 96 divisors (see below), whose sum is σ = 559690560. Its totient is φ = 38267520.

The previous prime is 157857473. The next prime is 157857493. The reversal of 157857480 is 84758751.

It is a happy number.

157857480 is a `hidden beast` number, since 1 + 5 + 78 + 574 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15972 + ... + 23891.

It is an arithmetic number, because the mean of its divisors is an integer number (5830110).

Almost surely, 2^157857480 is an apocalyptic number.

157857480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157857480 is an abundant number, since it is smaller than the sum of its proper divisors (401833080).

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

157857480 is a wasteful number, since it uses less digits than its factorization.

157857480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39891 (or 39884 counting only the distinct ones).

The product of its (nonzero) digits is 313600, while the sum is 45.

The square root of 157857480 is about 12564.1346697654. The cubic root of 157857480 is about 540.4494201008.

The spelling of 157857480 in words is "one hundred fifty-seven million, eight hundred fifty-seven thousand, four hundred eighty".