31914842 has 8 divisors (see below), whose sum is σ = 47932500. Its totient is φ = 15937344.

The previous prime is 31914829. The next prime is 31914871. The reversal of 31914842 is 24841913.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30680521 + 1234321 = 5539^2 + 1111^2 .

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 = 31914799 and 31914808.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7967 + ... + 11282.

Almost surely, 2^31914842 is an apocalyptic number.

31914842 is a deficient number, since it is larger than the sum of its proper divisors (16017658).

31914842 is a wasteful number, since it uses less digits than its factorization.

31914842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20080.

The product of its digits is 6912, while the sum is 32.

The square root of 31914842 is about 5649.3222602362. The cubic root of 31914842 is about 317.1983354157.

The spelling of 31914842 in words is "thirty-one million, nine hundred fourteen thousand, eight hundred forty-two".