31874342 has 8 divisors (see below), whose sum is σ = 47940816. Its totient is φ = 15894072.

The previous prime is 31874329. The next prime is 31874357. The reversal of 31874342 is 24347813.

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

It is a junction number, because it is equal to n+sod(n) for n = 31874299 and 31874308.

It is a congruent 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, 20618 + ... + 22109.

It is an arithmetic number, because the mean of its divisors is an integer number (5992602).

Almost surely, 2^31874342 is an apocalyptic number.

31874342 is a deficient number, since it is larger than the sum of its proper divisors (16066474).

31874342 is a wasteful number, since it uses less digits than its factorization.

31874342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43102.

The product of its digits is 16128, while the sum is 32.

The square root of 31874342 is about 5645.7366215579. The cubic root of 31874342 is about 317.0641035066.

The spelling of 31874342 in words is "thirty-one million, eight hundred seventy-four thousand, three hundred forty-two".