13923740 has 24 divisors (see below), whose sum is σ = 30512160. Its totient is φ = 5327168.

The previous prime is 13923737. The next prime is 13923757. The reversal of 13923740 is 4732931.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 14675 + ... + 15594.

It is an arithmetic number, because the mean of its divisors is an integer number (1271340).

Almost surely, 2^13923740 is an apocalyptic number.

13923740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13923740 is an abundant number, since it is smaller than the sum of its proper divisors (16588420).

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

13923740 is a wasteful number, since it uses less digits than its factorization.

13923740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30301 (or 30299 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 13923740 is about 3731.4528001839. The cubic root of 13923740 is about 240.5758164501.

The spelling of 13923740 in words is "thirteen million, nine hundred twenty-three thousand, seven hundred forty".