163389432 has 32 divisors (see below), whose sum is σ = 408816000. Its totient is φ = 54417504.

The previous prime is 163389427. The next prime is 163389433. The reversal of 163389432 is 234983361.

It is a super-2 number, since 2×163389432² = 53392212978565248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163389433) 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, 38773 + ... + 42779.

It is an arithmetic number, because the mean of its divisors is an integer number (12775500).

Almost surely, 2^163389432 is an apocalyptic number.

163389432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

163389432 is an abundant number, since it is smaller than the sum of its proper divisors (245426568).

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

163389432 is a wasteful number, since it uses less digits than its factorization.

163389432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5715 (or 5711 counting only the distinct ones).

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

The square root of 163389432 is about 12782.3875704033. The cubic root of 163389432 is about 546.6902405724.

The spelling of 163389432 in words is "one hundred sixty-three million, three hundred eighty-nine thousand, four hundred thirty-two".