31430848 has 28 divisors (see below), whose sum is σ = 63258192. Its totient is φ = 15491840.

The previous prime is 31430821. The next prime is 31430863. The reversal of 31430848 is 84803413.

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, 1086 + ... + 8002.

Almost surely, 2^31430848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31430848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31629096).

31430848 is an abundant number, since it is smaller than the sum of its proper divisors (31827344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31430848 is an equidigital number, since it uses as much as digits as its factorization.

31430848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7000 (or 6990 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 31430848 is about 5606.3221455782. The cubic root of 31430848 is about 315.5867053235.

The spelling of 31430848 in words is "thirty-one million, four hundred thirty thousand, eight hundred forty-eight".