13289420 has 12 divisors (see below), whose sum is σ = 27907824. Its totient is φ = 5315760.

The previous prime is 13289387. The next prime is 13289447. The reversal of 13289420 is 2498231.

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 3 ways as a sum of consecutive naturals, for example, 332216 + ... + 332255.

It is an arithmetic number, because the mean of its divisors is an integer number (2325652).

Almost surely, 2^13289420 is an apocalyptic number.

13289420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13289420 is an abundant number, since it is smaller than the sum of its proper divisors (14618404).

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

13289420 is a wasteful number, since it uses less digits than its factorization.

13289420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664480 (or 664478 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 13289420 is about 3645.4656767003. The cubic root of 13289420 is about 236.8656089129.

The spelling of 13289420 in words is "thirteen million, two hundred eighty-nine thousand, four hundred twenty".