3157242 has 16 divisors (see below), whose sum is σ = 6888672. Its totient is φ = 956720.

The previous prime is 3157229. The next prime is 3157243. The reversal of 3157242 is 2427513.

3157242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3157243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23853 + ... + 23984.

It is an arithmetic number, because the mean of its divisors is an integer number (430542).

Almost surely, 2^3157242 is an apocalyptic number.

3157242 is an abundant number, since it is smaller than the sum of its proper divisors (3731430).

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

3157242 is a wasteful number, since it uses less digits than its factorization.

3157242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47853.

The product of its digits is 1680, while the sum is 24.

The square root of 3157242 is about 1776.8629660162. The cubic root of 3157242 is about 146.7019738230.

It can be divided in two parts, 315 and 7242, that added together give a palindrome (7557).

The spelling of 3157242 in words is "three million, one hundred fifty-seven thousand, two hundred forty-two".