16938020 has 24 divisors (see below), whose sum is σ = 38803968. Its totient is φ = 6159200.

The previous prime is 16938013. The next prime is 16938023. The reversal of 16938020 is 2083961.

It is not an unprimeable number, because it can be changed into a prime (16938023) 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, 38276 + ... + 38715.

It is an arithmetic number, because the mean of its divisors is an integer number (1616832).

Almost surely, 2^16938020 is an apocalyptic number.

16938020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16938020 is an abundant number, since it is smaller than the sum of its proper divisors (21865948).

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

16938020 is a wasteful number, since it uses less digits than its factorization.

16938020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77011 (or 77009 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 16938020 is about 4115.5825833046. The cubic root of 16938020 is about 256.8152921927.

The spelling of 16938020 in words is "sixteen million, nine hundred thirty-eight thousand, twenty".