13988502 has 96 divisors (see below), whose sum is σ = 35582976. Its totient is φ = 3931200.

The previous prime is 13988477. The next prime is 13988521. The reversal of 13988502 is 20588931.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 263908 + ... + 263960.

It is an arithmetic number, because the mean of its divisors is an integer number (370656).

Almost surely, 2^13988502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13988502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17791488).

13988502 is an abundant number, since it is smaller than the sum of its proper divisors (21594474).

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

13988502 is a wasteful number, since it uses less digits than its factorization.

13988502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 13988502 is about 3740.1205862913. The cubic root of 13988502 is about 240.9482278326.

The spelling of 13988502 in words is "thirteen million, nine hundred eighty-eight thousand, five hundred two".