13899800 has 24 divisors (see below), whose sum is σ = 32317500. Its totient is φ = 5559840.

The previous prime is 13899799. The next prime is 13899803. The reversal of 13899800 is 899831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13899803) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34550 + ... + 34949.

Almost surely, 2^13899800 is an apocalyptic number.

13899800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13899800 is an abundant number, since it is smaller than the sum of its proper divisors (18417700).

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

13899800 is a wasteful number, since it uses less digits than its factorization.

13899800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69515 (or 69506 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 13899800 is about 3728.2435542759. The cubic root of 13899800 is about 240.4378580895.

The spelling of 13899800 in words is "thirteen million, eight hundred ninety-nine thousand, eight hundred".