13988700 has 180 divisors, whose sum is σ = 49783272. Its totient is φ = 3369600.

The previous prime is 13988687. The next prime is 13988713. The reversal of 13988700 is 788931.

It is an interprime number because it is at equal distance from previous prime (13988687) and next prime (13988713).

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 89022 + ... + 89178.

Almost surely, 2^13988700 is an apocalyptic number.

13988700 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 13988700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24891636).

13988700 is an abundant number, since it is smaller than the sum of its proper divisors (35794572).

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

13988700 is a wasteful number, since it uses less digits than its factorization.

13988700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 13988700 is about 3740.1470559324. The cubic root of 13988700 is about 240.9493646597.

The spelling of 13988700 in words is "thirteen million, nine hundred eighty-eight thousand, seven hundred".