13987200 has 192 divisors, whose sum is σ = 48568320. Its totient is φ = 3532800.

The previous prime is 13987139. The next prime is 13987217. The reversal of 13987200 is 278931.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 297577 + ... + 297623.

It is an arithmetic number, because the mean of its divisors is an integer number (252960).

Almost surely, 2^13987200 is an apocalyptic number.

13987200 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 13987200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24284160).

13987200 is an abundant number, since it is smaller than the sum of its proper divisors (34581120).

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

13987200 is a wasteful number, since it uses less digits than its factorization.

13987200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 13987200 is about 3739.9465236819. The cubic root of 13987200 is about 240.9407520661.

The spelling of 13987200 in words is "thirteen million, nine hundred eighty-seven thousand, two hundred".