13005742 has 8 divisors (see below), whose sum is σ = 19585296. Its totient is φ = 6477312.

The previous prime is 13005739. The next prime is 13005757. The reversal of 13005742 is 24750031.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12138 + ... + 13165.

It is an arithmetic number, because the mean of its divisors is an integer number (2448162).

Almost surely, 2^13005742 is an apocalyptic number.

13005742 is a deficient number, since it is larger than the sum of its proper divisors (6579554).

13005742 is a wasteful number, since it uses less digits than its factorization.

13005742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25562.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 13005742 is about 3606.3474596883. The cubic root of 13005742 is about 235.1680825578.

Adding to 13005742 its reverse (24750031), we get a palindrome (37755773).

The spelling of 13005742 in words is "thirteen million, five thousand, seven hundred forty-two".