13439420 has 12 divisors (see below), whose sum is σ = 28222824. Its totient is φ = 5375760.

The previous prime is 13439417. The next prime is 13439449. The reversal of 13439420 is 2493431.

13439420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13439420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335966 + ... + 336005.

It is an arithmetic number, because the mean of its divisors is an integer number (2351902).

Almost surely, 2^13439420 is an apocalyptic number.

13439420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13439420 is an abundant number, since it is smaller than the sum of its proper divisors (14783404).

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

13439420 is a wasteful number, since it uses less digits than its factorization.

13439420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671980 (or 671978 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 13439420 is about 3665.9814511260. The cubic root of 13439420 is about 237.7534579475.

The spelling of 13439420 in words is "thirteen million, four hundred thirty-nine thousand, four hundred twenty".