13085420 has 24 divisors (see below), whose sum is σ = 28223664. Its totient is φ = 5092416.

The previous prime is 13085407. The next prime is 13085431. The reversal of 13085420 is 2458031.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8102 + ... + 9581.

It is an arithmetic number, because the mean of its divisors is an integer number (1175986).

Almost surely, 2^13085420 is an apocalyptic number.

13085420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13085420 is an abundant number, since it is smaller than the sum of its proper divisors (15138244).

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

13085420 is a wasteful number, since it uses less digits than its factorization.

13085420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17729 (or 17727 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 13085420 is about 3617.3775031091. The cubic root of 13085420 is about 235.6473474713.

The spelling of 13085420 in words is "thirteen million, eighty-five thousand, four hundred twenty".