13920459 has 24 divisors (see below), whose sum is σ = 21732048. Its totient is φ = 7902720.

The previous prime is 13920449. The next prime is 13920461. The reversal of 13920459 is 95402931.

13920459 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 not a de Polignac number, because 13920459 - 2⁵ = 13920427 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13920419) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41139 + ... + 41475.

It is an arithmetic number, because the mean of its divisors is an integer number (905502).

Almost surely, 2^13920459 is an apocalyptic number.

13920459 is a deficient number, since it is larger than the sum of its proper divisors (7811589).

13920459 is a wasteful number, since it uses less digits than its factorization.

13920459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 13920459 is about 3731.0131331851. The cubic root of 13920459 is about 240.5569184801.

The spelling of 13920459 in words is "thirteen million, nine hundred twenty thousand, four hundred fifty-nine".