13999532 has 12 divisors (see below), whose sum is σ = 25097016. Its totient is φ = 6828960.

The previous prime is 13999529. The next prime is 13999537. The reversal of 13999532 is 23599931.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a self number, because there is not a number n which added to its sum of digits gives 13999532.

It is not an unprimeable number, because it can be changed into a prime (13999537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42518 + ... + 42845.

It is an arithmetic number, because the mean of its divisors is an integer number (2091418).

Almost surely, 2^13999532 is an apocalyptic number.

It is an amenable number.

13999532 is a deficient number, since it is larger than the sum of its proper divisors (11097484).

13999532 is a wasteful number, since it uses less digits than its factorization.

13999532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85408 (or 85406 counting only the distinct ones).

The product of its digits is 65610, while the sum is 41.

The square root of 13999532 is about 3741.5948471207. The cubic root of 13999532 is about 241.0115408005.

The spelling of 13999532 in words is "thirteen million, nine hundred ninety-nine thousand, five hundred thirty-two".