16388472 has 32 divisors (see below), whose sum is σ = 41114880. Its totient is φ = 5443680.

The previous prime is 16388467. The next prime is 16388497. The reversal of 16388472 is 27488361.

16388472 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 16388472.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6913 + ... + 8975.

It is an arithmetic number, because the mean of its divisors is an integer number (1284840).

Almost surely, 2^16388472 is an apocalyptic number.

16388472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16388472 is an abundant number, since it is smaller than the sum of its proper divisors (24726408).

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

16388472 is a wasteful number, since it uses less digits than its factorization.

16388472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2403 (or 2399 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 16388472 is about 4048.2677777044. The cubic root of 16388472 is about 254.0072744729.

The spelling of 16388472 in words is "sixteen million, three hundred eighty-eight thousand, four hundred seventy-two".