31415842 has 16 divisors (see below), whose sum is σ = 48239712. Its totient is φ = 15340320.

The previous prime is 31415837. The next prime is 31415869. The reversal of 31415842 is 24851413.

It is a self number, because there is not a number n which added to its sum of digits gives 31415842.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14617 + ... + 16627.

It is an arithmetic number, because the mean of its divisors is an integer number (3014982).

Almost surely, 2^31415842 is an apocalyptic number.

31415842 is a deficient number, since it is larger than the sum of its proper divisors (16823870).

31415842 is a wasteful number, since it uses less digits than its factorization.

31415842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193.

The product of its digits is 3840, while the sum is 28.

The square root of 31415842 is about 5604.9836752661. The cubic root of 31415842 is about 315.5364739081.

The spelling of 31415842 in words is "thirty-one million, four hundred fifteen thousand, eight hundred forty-two".