31942542 has 8 divisors (see below), whose sum is σ = 63885096. Its totient is φ = 10647512.

The previous prime is 31942531. The next prime is 31942571. The reversal of 31942542 is 24524913.

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

31942542 is an admirable number.

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, 2661873 + ... + 2661884.

It is an arithmetic number, because the mean of its divisors is an integer number (7985637).

Almost surely, 2^31942542 is an apocalyptic number.

31942542 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.

31942542 is a wasteful number, since it uses less digits than its factorization.

31942542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5323762.

The product of its digits is 8640, while the sum is 30.

The square root of 31942542 is about 5651.7733500203. The cubic root of 31942542 is about 317.2900780299.

The spelling of 31942542 in words is "thirty-one million, nine hundred forty-two thousand, five hundred forty-two".