13909932 has 36 divisors (see below), whose sum is σ = 35913696. Its totient is φ = 4537440.

The previous prime is 13909921. The next prime is 13909939. The reversal of 13909932 is 23990931.

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 not an unprimeable number, because it can be changed into a prime (13909939) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2419 + ... + 5802.

Almost surely, 2^13909932 is an apocalyptic number.

13909932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13909932 is an abundant number, since it is smaller than the sum of its proper divisors (22003764).

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

13909932 is a wasteful number, since it uses less digits than its factorization.

13909932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8278 (or 8273 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 36.

The square root of 13909932 is about 3729.6021235515. The cubic root of 13909932 is about 240.4962647979.

It can be divided in two parts, 13909 and 932, that added together give a palindrome (14841).

The spelling of 13909932 in words is "thirteen million, nine hundred nine thousand, nine hundred thirty-two".