16297938 has 24 divisors (see below), whose sum is σ = 36848448. Its totient is φ = 5196312.

The previous prime is 16297927. The next prime is 16297943. The reversal of 16297938 is 83979261.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 16297893 and 16297902.

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, 19270 + ... + 20097.

It is an arithmetic number, because the mean of its divisors is an integer number (1535352).

Almost surely, 2^16297938 is an apocalyptic number.

16297938 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

16297938 is an abundant number, since it is smaller than the sum of its proper divisors (20550510).

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

16297938 is a wasteful number, since it uses less digits than its factorization.

16297938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39398 (or 39395 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 16297938 is about 4037.0704725085. The cubic root of 16297938 is about 253.5386773846.

The spelling of 16297938 in words is "sixteen million, two hundred ninety-seven thousand, nine hundred thirty-eight".