13235742 has 72 divisors (see below), whose sum is σ = 32830200. Its totient is φ = 3841344.

The previous prime is 13235737. The next prime is 13235753. The reversal of 13235742 is 24753231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 57684 + ... + 57912.

It is an arithmetic number, because the mean of its divisors is an integer number (455975).

Almost surely, 2^13235742 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13235742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16415100).

13235742 is an abundant number, since it is smaller than the sum of its proper divisors (19594458).

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

13235742 is a wasteful number, since it uses less digits than its factorization.

13235742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282 (or 266 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 13235742 is about 3638.0959305659. The cubic root of 13235742 is about 236.5462664274.

Adding to 13235742 its reverse (24753231), we get a palindrome (37988973).

The spelling of 13235742 in words is "thirteen million, two hundred thirty-five thousand, seven hundred forty-two".