13744920 has 64 divisors (see below), whose sum is σ = 47128320. Its totient is φ = 3141504.

The previous prime is 13744919. The next prime is 13744921. The reversal of 13744920 is 2944731.

It is a happy number.

13744920 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13744919) and next prime (13744921).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13744921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7342 + ... + 9021.

It is an arithmetic number, because the mean of its divisors is an integer number (736380).

Almost surely, 2^13744920 is an apocalyptic number.

13744920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13744920 is an abundant number, since it is smaller than the sum of its proper divisors (33383400).

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

13744920 is a wasteful number, since it uses less digits than its factorization.

13744920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16384 (or 16380 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 13744920 is about 3707.4141932080. The cubic root of 13744920 is about 239.5414856882.

The spelling of 13744920 in words is "thirteen million, seven hundred forty-four thousand, nine hundred twenty".