157404 has 24 divisors (see below), whose sum is σ = 395920. Its totient is φ = 48384.

The previous prime is 157393. The next prime is 157411. The reversal of 157404 is 404751.

It is a Smith number, since the sum of its digits (21) coincides with the sum of the digits of its prime factors.

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349 + ... + 660.

2¹⁵⁷⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

157404 is an abundant number, since it is smaller than the sum of its proper divisors (238516).

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

157404 is a wasteful number, since it uses less digits than its factorization.

157404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029 (or 1027 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 157404 is about 396.7417295924. The cubic root of 157404 is about 53.9931404181.

It can be divided in two parts, 157 and 404, that added together give a triangular number (561 = T₃₃).

The spelling of 157404 in words is "one hundred fifty-seven thousand, four hundred four".