16939936 has 48 divisors (see below), whose sum is σ = 36789984. Its totient is φ = 7628544.

The previous prime is 16939933. The next prime is 16939997. The reversal of 16939936 is 63993961.

It is a super-2 number, since 2×16939936² = 573922863368192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16939931) 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, 17415 + ... + 18361.

It is an arithmetic number, because the mean of its divisors is an integer number (766458).

Almost surely, 2^16939936 is an apocalyptic number.

16939936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16939936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18394992).

16939936 is an abundant number, since it is smaller than the sum of its proper divisors (19850048).

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

16939936 is a wasteful number, since it uses less digits than its factorization.

16939936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013 (or 1005 counting only the distinct ones).

The product of its digits is 236196, while the sum is 46.

The square root of 16939936 is about 4115.8153505715. The cubic root of 16939936 is about 256.8249753306.

The spelling of 16939936 in words is "sixteen million, nine hundred thirty-nine thousand, nine hundred thirty-six".