16397136 has 60 divisors (see below), whose sum is σ = 52448032. Its totient is φ = 4684608.

The previous prime is 16397123. The next prime is 16397141. The reversal of 16397136 is 63179361.

16397136 is a `hidden beast` number, since 1 + 639 + 7 + 13 + 6 = 666.

16397136 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

16397136 is strictly pandigital in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 16397136.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7126 + ... + 9141.

Almost surely, 2^16397136 is an apocalyptic number.

16397136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16397136 is an abundant number, since it is smaller than the sum of its proper divisors (36050896).

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

16397136 is a wasteful number, since it uses less digits than its factorization.

16397136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16288 (or 16279 counting only the distinct ones).

The product of its digits is 20412, while the sum is 36.

The square root of 16397136 is about 4049.3377236284. The cubic root of 16397136 is about 254.0520281128.

The spelling of 16397136 in words is "sixteen million, three hundred ninety-seven thousand, one hundred thirty-six".