3155742 has 24 divisors (see below), whose sum is σ = 6879600. Its totient is φ = 1045440.

The previous prime is 3155741. The next prime is 3155771. The reversal of 3155742 is 2475513.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3155741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3142 + ... + 4022.

It is an arithmetic number, because the mean of its divisors is an integer number (286650).

Almost surely, 2^3155742 is an apocalyptic number.

3155742 is an abundant number, since it is smaller than the sum of its proper divisors (3723858).

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

3155742 is a wasteful number, since it uses less digits than its factorization.

3155742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088 (or 1085 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 3155742 is about 1776.4408236696. The cubic root of 3155742 is about 146.6787375281.

The spelling of 3155742 in words is "three million, one hundred fifty-five thousand, seven hundred forty-two".