13791432 has 16 divisors (see below), whose sum is σ = 34478640. Its totient is φ = 4597136.

The previous prime is 13791409. The next prime is 13791451. The reversal of 13791432 is 23419731.

It is a super-2 number, since 2×13791432² = 380407193221248, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13791432.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287298 + ... + 287345.

It is an arithmetic number, because the mean of its divisors is an integer number (2154915).

Almost surely, 2^13791432 is an apocalyptic number.

13791432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13791432 is an abundant number, since it is smaller than the sum of its proper divisors (20687208).

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

13791432 is a wasteful number, since it uses less digits than its factorization.

13791432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574652 (or 574648 counting only the distinct ones).

The product of its digits is 4536, while the sum is 30.

The square root of 13791432 is about 3713.6817311127. The cubic root of 13791432 is about 239.8113795763.

The spelling of 13791432 in words is "thirteen million, seven hundred ninety-one thousand, four hundred thirty-two".