13899900 has 72 divisors (see below), whose sum is σ = 45969280. Its totient is φ = 3176640.

The previous prime is 13899881. The next prime is 13899917. The reversal of 13899900 is 999831.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1210 + ... + 5409.

Almost surely, 2^13899900 is an apocalyptic number.

13899900 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 13899900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22984640).

13899900 is an abundant number, since it is smaller than the sum of its proper divisors (32069380).

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

13899900 is a wasteful number, since it uses less digits than its factorization.

13899900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6643 (or 6636 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 39.

The square root of 13899900 is about 3728.2569653928. The cubic root of 13899900 is about 240.4384346860.

The spelling of 13899900 in words is "thirteen million, eight hundred ninety-nine thousand, nine hundred".