13898406 has 16 divisors (see below), whose sum is σ = 27848448. Its totient is φ = 4624200.

The previous prime is 13898389. The next prime is 13898411. The reversal of 13898406 is 60489831.

It is a super-3 number, since 3×13898406³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

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, 1951 + ... + 5621.

It is an arithmetic number, because the mean of its divisors is an integer number (1740528).

Almost surely, 2^13898406 is an apocalyptic number.

13898406 is an abundant number, since it is smaller than the sum of its proper divisors (13950042).

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

13898406 is a wasteful number, since it uses less digits than its factorization.

13898406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4307.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 13898406 is about 3728.0565982828. The cubic root of 13898406 is about 240.4298200463.

The spelling of 13898406 in words is "thirteen million, eight hundred ninety-eight thousand, four hundred six".