16388132 has 12 divisors (see below), whose sum is σ = 29668380. Its totient is φ = 7911456.

The previous prime is 16388123. The next prime is 16388171. The reversal of 16388132 is 23188361.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4990756 + 11397376 = 2234^2 + 3376^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70523 + ... + 70754.

It is an arithmetic number, because the mean of its divisors is an integer number (2472365).

Almost surely, 2^16388132 is an apocalyptic number.

It is an amenable number.

16388132 is a deficient number, since it is larger than the sum of its proper divisors (13280248).

16388132 is a wasteful number, since it uses less digits than its factorization.

16388132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141310 (or 141308 counting only the distinct ones).

The product of its digits is 6912, while the sum is 32.

The square root of 16388132 is about 4048.2257842171. The cubic root of 16388132 is about 254.0055178912.

The spelling of 16388132 in words is "sixteen million, three hundred eighty-eight thousand, one hundred thirty-two".