31879342 has 8 divisors (see below), whose sum is σ = 52166232. Its totient is φ = 14490600.

The previous prime is 31879327. The next prime is 31879343. The reversal of 31879342 is 24397813.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31879343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 724509 + ... + 724552.

It is an arithmetic number, because the mean of its divisors is an integer number (6520779).

Almost surely, 2^31879342 is an apocalyptic number.

31879342 is a deficient number, since it is larger than the sum of its proper divisors (20286890).

31879342 is a wasteful number, since it uses less digits than its factorization.

31879342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449074.

The product of its digits is 36288, while the sum is 37.

The square root of 31879342 is about 5646.1794162070. The cubic root of 31879342 is about 317.0806814973.

The spelling of 31879342 in words is "thirty-one million, eight hundred seventy-nine thousand, three hundred forty-two".