13499928 has 48 divisors (see below), whose sum is σ = 39377520. Its totient is φ = 4153536.

The previous prime is 13499903. The next prime is 13499929. The reversal of 13499928 is 82999431.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13499929) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6276 + ... + 8147.

It is an arithmetic number, because the mean of its divisors is an integer number (820365).

Almost surely, 2^13499928 is an apocalyptic number.

13499928 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13499928 is an abundant number, since it is smaller than the sum of its proper divisors (25877592).

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

13499928 is a wasteful number, since it uses less digits than its factorization.

13499928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14448 (or 14441 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 13499928 is about 3674.2248162027. The cubic root of 13499928 is about 238.1097344875.

The spelling of 13499928 in words is "thirteen million, four hundred ninety-nine thousand, nine hundred twenty-eight".