31242814 has 8 divisors (see below), whose sum is σ = 46906848. Its totient is φ = 15607200.

The previous prime is 31242793. The next prime is 31242833. The reversal of 31242814 is 41824213.

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

It is a super-2 number, since 2×31242814² = 1952226853277192, which contains 22 as substring.

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, 4102 + ... + 8905.

It is an arithmetic number, because the mean of its divisors is an integer number (5863356).

Almost surely, 2^31242814 is an apocalyptic number.

31242814 is a deficient number, since it is larger than the sum of its proper divisors (15664034).

31242814 is a wasteful number, since it uses less digits than its factorization.

31242814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14210.

The product of its digits is 1536, while the sum is 25.

The square root of 31242814 is about 5589.5271714162. The cubic root of 31242814 is about 314.9561171758.

The spelling of 31242814 in words is "thirty-one million, two hundred forty-two thousand, eight hundred fourteen".