13992406 has 4 divisors (see below), whose sum is σ = 20988612. Its totient is φ = 6996202.

The previous prime is 13992403. The next prime is 13992427. The reversal of 13992406 is 60429931.

13992406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13992403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3498100 + ... + 3498103.

It is an arithmetic number, because the mean of its divisors is an integer number (5247153).

Almost surely, 2^13992406 is an apocalyptic number.

13992406 is a deficient number, since it is larger than the sum of its proper divisors (6996206).

13992406 is an equidigital number, since it uses as much as digits as its factorization.

13992406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6996205.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 13992406 is about 3740.6424581882. The cubic root of 13992406 is about 240.9706408684.

The spelling of 13992406 in words is "thirteen million, nine hundred ninety-two thousand, four hundred six".