13440742 has 8 divisors (see below), whose sum is σ = 23041296. Its totient is φ = 5760312.

The previous prime is 13440709. The next prime is 13440751. The reversal of 13440742 is 24704431.

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

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, 480013 + ... + 480040.

It is an arithmetic number, because the mean of its divisors is an integer number (2880162).

Almost surely, 2^13440742 is an apocalyptic number.

13440742 is a deficient number, since it is larger than the sum of its proper divisors (9600554).

13440742 is an equidigital number, since it uses as much as digits as its factorization.

13440742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960062.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 13440742 is about 3666.1617531146. The cubic root of 13440742 is about 237.7612534170.

The spelling of 13440742 in words is "thirteen million, four hundred forty thousand, seven hundred forty-two".