16318938 has 16 divisors (see below), whose sum is σ = 33763680. Its totient is φ = 5252016.

The previous prime is 16318933. The next prime is 16318957. The reversal of 16318938 is 83981361.

16318938 is digitally balanced in base 2 and base 4, because in such bases 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 = 16318896 and 16318905.

It is not an unprimeable number, because it can be changed into a prime (16318933) 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, 46720 + ... + 47067.

It is an arithmetic number, because the mean of its divisors is an integer number (2110230).

Almost surely, 2^16318938 is an apocalyptic number.

16318938 is an abundant number, since it is smaller than the sum of its proper divisors (17444742).

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

16318938 is a wasteful number, since it uses less digits than its factorization.

16318938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93821.

The product of its digits is 31104, while the sum is 39.

The square root of 16318938 is about 4039.6705311201. The cubic root of 16318938 is about 253.6475260635.

The spelling of 16318938 in words is "sixteen million, three hundred eighteen thousand, nine hundred thirty-eight".