16138860 has 96 divisors (see below), whose sum is σ = 47416320. Its totient is φ = 4098048.

The previous prime is 16138841. The next prime is 16138861. The reversal of 16138860 is 6883161.

16138860 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 not an unprimeable number, because it can be changed into a prime (16138861) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166332 + ... + 166428.

It is an arithmetic number, because the mean of its divisors is an integer number (493920).

Almost surely, 2^16138860 is an apocalyptic number.

16138860 is a gapful number since it is divisible by the number (10) 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 16138860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23708160).

16138860 is an abundant number, since it is smaller than the sum of its proper divisors (31277460).

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

16138860 is a wasteful number, since it uses less digits than its factorization.

16138860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 16138860 is about 4017.3200021905. The cubic root of 16138860 is about 252.7110805617.

The spelling of 16138860 in words is "sixteen million, one hundred thirty-eight thousand, eight hundred sixty".