13639414 has 8 divisors (see below), whose sum is σ = 21348720. Its totient is φ = 6523176.

The previous prime is 13639361. The next prime is 13639427. The reversal of 13639414 is 41493631.

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

It is a super-2 number, since 2×13639414² = 372067228526792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 148209 + ... + 148300.

It is an arithmetic number, because the mean of its divisors is an integer number (2668590).

Almost surely, 2^13639414 is an apocalyptic number.

13639414 is a deficient number, since it is larger than the sum of its proper divisors (7709306).

13639414 is a wasteful number, since it uses less digits than its factorization.

13639414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296534.

The product of its digits is 7776, while the sum is 31.

The square root of 13639414 is about 3693.1577274739. The cubic root of 13639414 is about 238.9270039618.

The spelling of 13639414 in words is "thirteen million, six hundred thirty-nine thousand, four hundred fourteen".