13749232 has 20 divisors (see below), whose sum is σ = 30444976. Its totient is φ = 5892480.

The previous prime is 13749191. The next prime is 13749233. The reversal of 13749232 is 23294731.

It is a junction number, because it is equal to n+sod(n) for n = 13749194 and 13749203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13749233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61269 + ... + 61492.

Almost surely, 2^13749232 is an apocalyptic number.

It is an amenable number.

13749232 is an abundant number, since it is smaller than the sum of its proper divisors (16695744).

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

13749232 is a wasteful number, since it uses less digits than its factorization.

13749232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122776 (or 122770 counting only the distinct ones).

The product of its digits is 9072, while the sum is 31.

The square root of 13749232 is about 3707.9956850029. The cubic root of 13749232 is about 239.5665323938.

The spelling of 13749232 in words is "thirteen million, seven hundred forty-nine thousand, two hundred thirty-two".