3157742 has 16 divisors (see below), whose sum is σ = 5529600. Its totient is φ = 1324248.

The previous prime is 3157711. The next prime is 3157751. The reversal of 3157742 is 2477513.

3157742 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

3157742 is strictly pandigital in base 8.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1742 + ... + 3057.

It is an arithmetic number, because the mean of its divisors is an integer number (345600).

Almost surely, 2^3157742 is an apocalyptic number.

3157742 is a deficient number, since it is larger than the sum of its proper divisors (2371858).

3157742 is a wasteful number, since it uses less digits than its factorization.

3157742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4855.

The product of its digits is 5880, while the sum is 29.

The square root of 3157742 is about 1777.0036578465. The cubic root of 3157742 is about 146.7097176192.

The spelling of 3157742 in words is "three million, one hundred fifty-seven thousand, seven hundred forty-two".