13391742 has 32 divisors (see below), whose sum is σ = 32965632. Its totient is φ = 3531744.

The previous prime is 13391731. The next prime is 13391747. The reversal of 13391742 is 24719331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13391747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11718 + ... + 12809.

It is an arithmetic number, because the mean of its divisors is an integer number (1030176).

Almost surely, 2^13391742 is an apocalyptic number.

13391742 is an abundant number, since it is smaller than the sum of its proper divisors (19573890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13391742 is a wasteful number, since it uses less digits than its factorization.

13391742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24552.

The product of its digits is 4536, while the sum is 30.

The square root of 13391742 is about 3659.4729128660. The cubic root of 13391742 is about 237.4719715770.

It can be divided in two parts, 1339 and 1742, that added together give a triangular number (3081 = T₇₈).

The spelling of 13391742 in words is "thirteen million, three hundred ninety-one thousand, seven hundred forty-two".