163438932 has 12 divisors (see below), whose sum is σ = 381357536. Its totient is φ = 54479640.

The previous prime is 163438859. The next prime is 163438937. The reversal of 163438932 is 239834361.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163438937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6809944 + ... + 6809967.

Almost surely, 2^163438932 is an apocalyptic number.

163438932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

163438932 is an abundant number, since it is smaller than the sum of its proper divisors (217918604).

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

163438932 is a wasteful number, since it uses less digits than its factorization.

163438932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13619918 (or 13619916 counting only the distinct ones).

The product of its digits is 93312, while the sum is 39.

The square root of 163438932 is about 12784.3236817596. The cubic root of 163438932 is about 546.7454429076.

The spelling of 163438932 in words is "one hundred sixty-three million, four hundred thirty-eight thousand, nine hundred thirty-two".