31924342 has 8 divisors (see below), whose sum is σ = 48064032. Its totient is φ = 15903000.

The previous prime is 31924339. The next prime is 31924357. The reversal of 31924342 is 24342913.

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

It is a super-2 number, since 2×31924342² = 2038327224265928, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31924342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28909 + ... + 29992.

It is an arithmetic number, because the mean of its divisors is an integer number (6008004).

Almost surely, 2^31924342 is an apocalyptic number.

31924342 is a deficient number, since it is larger than the sum of its proper divisors (16139690).

31924342 is a wasteful number, since it uses less digits than its factorization.

31924342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59174.

The product of its digits is 5184, while the sum is 28.

The square root of 31924342 is about 5650.1630064981. The cubic root of 31924342 is about 317.2298054680.

The spelling of 31924342 in words is "thirty-one million, nine hundred twenty-four thousand, three hundred forty-two".