13685370 has 32 divisors (see below), whose sum is σ = 32959872. Its totient is φ = 3636672.

The previous prime is 13685369. The next prime is 13685381. The reversal of 13685370 is 7358631.

It is a happy number.

13685370 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 a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10579 + ... + 11801.

It is an arithmetic number, because the mean of its divisors is an integer number (1029996).

Almost surely, 2^13685370 is an apocalyptic number.

13685370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13685370 is an abundant number, since it is smaller than the sum of its proper divisors (19274502).

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

13685370 is a wasteful number, since it uses less digits than its factorization.

13685370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606.

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 13685370 is about 3699.3742714140. The cubic root of 13685370 is about 239.1950462802.

The spelling of 13685370 in words is "thirteen million, six hundred eighty-five thousand, three hundred seventy".