13440974 has 8 divisors (see below), whose sum is σ = 20192328. Its totient is φ = 6710200.

The previous prime is 13440971. The next prime is 13440997. The reversal of 13440974 is 47904431.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 13440974.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13440971) 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, 3392 + ... + 6195.

It is an arithmetic number, because the mean of its divisors is an integer number (2524041).

Almost surely, 2^13440974 is an apocalyptic number.

13440974 is a deficient number, since it is larger than the sum of its proper divisors (6751354).

13440974 is an equidigital number, since it uses as much as digits as its factorization.

13440974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10290.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 13440974 is about 3666.1933936987. The cubic root of 13440974 is about 237.7626214043.

The spelling of 13440974 in words is "thirteen million, four hundred forty thousand, nine hundred seventy-four".