3157842 has 8 divisors (see below), whose sum is σ = 6315696. Its totient is φ = 1052612.

The previous prime is 3157837. The next prime is 3157853. The reversal of 3157842 is 2487513.

It is a sphenic number, since it is the product of 3 distinct primes.

3157842 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263148 + ... + 263159.

It is an arithmetic number, because the mean of its divisors is an integer number (789462).

Almost surely, 2^3157842 is an apocalyptic number.

3157842 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3157842 is a wasteful number, since it uses less digits than its factorization.

3157842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526312.

The product of its digits is 6720, while the sum is 30.

The square root of 3157842 is about 1777.0317948759. The cubic root of 3157842 is about 146.7112662803.

The spelling of 3157842 in words is "three million, one hundred fifty-seven thousand, eight hundred forty-two".