13720504 has 32 divisors (see below), whose sum is σ = 29520000. Its totient is φ = 5856480.

The previous prime is 13720501. The next prime is 13720517. The reversal of 13720504 is 40502731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13720501) 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 7 ways as a sum of consecutive naturals, for example, 27247 + ... + 27745.

It is an arithmetic number, because the mean of its divisors is an integer number (922500).

Almost surely, 2^13720504 is an apocalyptic number.

13720504 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

13720504 is an abundant number, since it is smaller than the sum of its proper divisors (15799496).

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

13720504 is a wasteful number, since it uses less digits than its factorization.

13720504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1003 (or 999 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 13720504 is about 3704.1198684708. The cubic root of 13720504 is about 239.3995638862.

The spelling of 13720504 in words is "thirteen million, seven hundred twenty thousand, five hundred four".