13859406 has 24 divisors (see below), whose sum is σ = 32759064. Its totient is φ = 4199760.

The previous prime is 13859393. The next prime is 13859411. The reversal of 13859406 is 60495831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34801 + ... + 35196.

It is an arithmetic number, because the mean of its divisors is an integer number (1364961).

Almost surely, 2^13859406 is an apocalyptic number.

13859406 is an abundant number, since it is smaller than the sum of its proper divisors (18899658).

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

13859406 is a wasteful number, since it uses less digits than its factorization.

13859406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70016 (or 70013 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 13859406 is about 3722.8223164691. The cubic root of 13859406 is about 240.2047211555.

The spelling of 13859406 in words is "thirteen million, eight hundred fifty-nine thousand, four hundred six".