31240488842 has 8 divisors (see below), whose sum is σ = 46874252100. Its totient is φ = 15615738144.

The previous prime is 31240488823. The next prime is 31240488899. The reversal of 31240488842 is 24888404213.

It can be written as a sum of positive squares in 2 ways, for example, as 31240209001 + 279841 = 176749^2 + 529^2 .

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 = 31240488793 and 31240488802.

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, 2244467 + ... + 2258342.

Almost surely, 2^31240488842 is an apocalyptic number.

31240488842 is a deficient number, since it is larger than the sum of its proper divisors (15633763258).

31240488842 is a wasteful number, since it uses less digits than its factorization.

31240488842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4506280.

The product of its (nonzero) digits is 393216, while the sum is 44.

The spelling of 31240488842 in words is "thirty-one billion, two hundred forty million, four hundred eighty-eight thousand, eight hundred forty-two".