13404742 has 12 divisors (see below), whose sum is σ = 21773340. Its totient is φ = 6186648.

The previous prime is 13404739. The next prime is 13404761. The reversal of 13404742 is 24740431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19492 + ... + 20167.

It is an arithmetic number, because the mean of its divisors is an integer number (1814445).

Almost surely, 2^13404742 is an apocalyptic number.

13404742 is a deficient number, since it is larger than the sum of its proper divisors (8368598).

13404742 is a wasteful number, since it uses less digits than its factorization.

13404742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39687 (or 39674 counting only the distinct ones).

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

The square root of 13404742 is about 3661.2486940933. The cubic root of 13404742 is about 237.5487884995.

The spelling of 13404742 in words is "thirteen million, four hundred four thousand, seven hundred forty-two".