13989492 has 36 divisors (see below), whose sum is σ = 38578176. Its totient is φ = 4239120.

The previous prime is 13989473. The next prime is 13989523. The reversal of 13989492 is 29498931.

It is a tau number, because it is divible by the number of its divisors (36).

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, 17268 + ... + 18059.

It is an arithmetic number, because the mean of its divisors is an integer number (1071616).

Almost surely, 2^13989492 is an apocalyptic number.

13989492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13989492 is an abundant number, since it is smaller than the sum of its proper divisors (24588684).

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

13989492 is a wasteful number, since it uses less digits than its factorization.

13989492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35348 (or 35343 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 13989492 is about 3740.2529326237. The cubic root of 13989492 is about 240.9539118608.

The spelling of 13989492 in words is "thirteen million, nine hundred eighty-nine thousand, four hundred ninety-two".