13899426 has 8 divisors (see below), whose sum is σ = 27798864. Its totient is φ = 4633140.

The previous prime is 13899401. The next prime is 13899443. The reversal of 13899426 is 62499831.

It is a sphenic number, since it is the product of 3 distinct primes.

13899426 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1158280 + ... + 1158291.

It is an arithmetic number, because the mean of its divisors is an integer number (3474858).

Almost surely, 2^13899426 is an apocalyptic number.

13899426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13899426 is a wasteful number, since it uses less digits than its factorization.

13899426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2316576.

The product of its digits is 93312, while the sum is 42.

The square root of 13899426 is about 3728.1933962712. The cubic root of 13899426 is about 240.4357015941.

The spelling of 13899426 in words is "thirteen million, eight hundred ninety-nine thousand, four hundred twenty-six".