163427408 has 30 divisors (see below), whose sum is σ = 323351514. Its totient is φ = 79989312.

The previous prime is 163427401. The next prime is 163427449. The reversal of 163427408 is 804724361.

163427408 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 151093264 + 12334144 = 12292^2 + 3512^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163427401) 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, 372053 + ... + 372491.

Almost surely, 2^163427408 is an apocalyptic number.

It is an amenable number.

163427408 is a deficient number, since it is larger than the sum of its proper divisors (159924106).

163427408 is an frugal number, since it uses more digits than its factorization.

163427408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939 (or 494 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 163427408 is about 12783.8729655766. The cubic root of 163427408 is about 546.7325923534.

The spelling of 163427408 in words is "one hundred sixty-three million, four hundred twenty-seven thousand, four hundred eight".