16396938 has 16 divisors (see below), whose sum is σ = 36437760. Its totient is φ = 5465628.

The previous prime is 16396931. The next prime is 16396951. The reversal of 16396938 is 83969361.

16396938 is a `hidden beast` number, since 1 + 639 + 6 + 9 + 3 + 8 = 666.

16396938 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 16396893 and 16396902.

It is not an unprimeable number, because it can be changed into a prime (16396931) 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, 151770 + ... + 151877.

It is an arithmetic number, because the mean of its divisors is an integer number (2277360).

Almost surely, 2^16396938 is an apocalyptic number.

16396938 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

16396938 is an abundant number, since it is smaller than the sum of its proper divisors (20040822).

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

16396938 is a wasteful number, since it uses less digits than its factorization.

16396938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303658 (or 303652 counting only the distinct ones).

The product of its digits is 209952, while the sum is 45.

The square root of 16396938 is about 4049.3132751122. The cubic root of 16396938 is about 254.0510055256.

The spelling of 16396938 in words is "sixteen million, three hundred ninety-six thousand, nine hundred thirty-eight".