157404906 has 12 divisors (see below), whose sum is σ = 341044002. Its totient is φ = 52468296.

The previous prime is 157404901. The next prime is 157404913. The reversal of 157404906 is 609404751.

It can be written as a sum of positive squares in only one way, i.e., 140635881 + 16769025 = 11859^2 + 4095^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (157404901) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4372341 + ... + 4372376.

Almost surely, 2^157404906 is an apocalyptic number.

157404906 is an abundant number, since it is smaller than the sum of its proper divisors (183639096).

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

157404906 is a wasteful number, since it uses less digits than its factorization.

157404906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8744725 (or 8744722 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 157404906 is about 12546.1111903251. Note that the first 4 decimals coincide. The cubic root of 157404906 is about 539.9324401075.

The spelling of 157404906 in words is "one hundred fifty-seven million, four hundred four thousand, nine hundred six".