163874838 has 16 divisors (see below), whose sum is σ = 329305536. Its totient is φ = 54365640.

The previous prime is 163874833. The next prime is 163874857. The reversal of 163874838 is 838478361.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163874833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63456 + ... + 65987.

It is an arithmetic number, because the mean of its divisors is an integer number (20581596).

Almost surely, 2^163874838 is an apocalyptic number.

163874838 is an abundant number, since it is smaller than the sum of its proper divisors (165430698).

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

163874838 is a wasteful number, since it uses less digits than its factorization.

163874838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129659.

The product of its digits is 774144, while the sum is 48.

The square root of 163874838 is about 12801.3607870414. The cubic root of 163874838 is about 547.2310841346.

The spelling of 163874838 in words is "one hundred sixty-three million, eight hundred seventy-four thousand, eight hundred thirty-eight".