13942407 has 4 divisors (see below), whose sum is σ = 18589880. Its totient is φ = 9294936.

The previous prime is 13942403. The next prime is 13942433. The reversal of 13942407 is 70424931.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13942407 - 2² = 13942403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13942403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2323732 + ... + 2323737.

It is an arithmetic number, because the mean of its divisors is an integer number (4647470).

Almost surely, 2^13942407 is an apocalyptic number.

13942407 is a deficient number, since it is larger than the sum of its proper divisors (4647473).

13942407 is an equidigital number, since it uses as much as digits as its factorization.

13942407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4647472.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 13942407 is about 3733.9532669813. The cubic root of 13942407 is about 240.6832785584.

The spelling of 13942407 in words is "thirteen million, nine hundred forty-two thousand, four hundred seven".