13903900 has 36 divisors (see below), whose sum is σ = 30392152. Its totient is φ = 5520960.

The previous prime is 13903889. The next prime is 13903949. The reversal of 13903900 is 930931.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15874 + ... + 16726.

Almost surely, 2^13903900 is an apocalyptic number.

13903900 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 13903900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15196076).

13903900 is an abundant number, since it is smaller than the sum of its proper divisors (16488252).

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

13903900 is a wasteful number, since it uses less digits than its factorization.

13903900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030 (or 1023 counting only the distinct ones).

The product of its (nonzero) digits is 729, while the sum is 25.

The square root of 13903900 is about 3728.7933705155. The cubic root of 13903900 is about 240.4614962787.

The spelling of 13903900 in words is "thirteen million, nine hundred three thousand, nine hundred".