13939452 has 36 divisors (see below), whose sum is σ = 36543416. Its totient is φ = 4646160.

The previous prime is 13939411. The next prime is 13939463. The reversal of 13939452 is 25493931.

It is a happy number.

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

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 11 ways as a sum of consecutive naturals, for example, 6199 + ... + 8142.

Almost surely, 2^13939452 is an apocalyptic number.

13939452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13939452 is an abundant number, since it is smaller than the sum of its proper divisors (22603964).

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

13939452 is a wasteful number, since it uses less digits than its factorization.

13939452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14360 (or 14346 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 13939452 is about 3733.5575527906. The cubic root of 13939452 is about 240.6662736195. Note that the first 3 decimals are identical.

The spelling of 13939452 in words is "thirteen million, nine hundred thirty-nine thousand, four hundred fifty-two".