13880406 has 8 divisors (see below), whose sum is σ = 27760824. Its totient is φ = 4626800.

The previous prime is 13880371. The next prime is 13880407. The reversal of 13880406 is 60408831.

It is a happy number.

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

13880406 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13880407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1156695 + ... + 1156706.

It is an arithmetic number, because the mean of its divisors is an integer number (3470103).

Almost surely, 2^13880406 is an apocalyptic number.

13880406 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.

13880406 is a wasteful number, since it uses less digits than its factorization.

13880406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2313406.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 13880406 is about 3725.6416896959. The cubic root of 13880406 is about 240.3259806466.

The spelling of 13880406 in words is "thirteen million, eight hundred eighty thousand, four hundred six".