31484432 has 40 divisors (see below), whose sum is σ = 70382400. Its totient is φ = 13364352.

The previous prime is 31484417. The next prime is 31484449. The reversal of 31484432 is 23448413.

It is a junction number, because it is equal to n+sod(n) for n = 31484395 and 31484404.

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, 10919 + ... + 13497.

It is an arithmetic number, because the mean of its divisors is an integer number (1759560).

Almost surely, 2^31484432 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 31484432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35191200).

31484432 is an abundant number, since it is smaller than the sum of its proper divisors (38897968).

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

31484432 is a wasteful number, since it uses less digits than its factorization.

31484432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2703 (or 2697 counting only the distinct ones).

The product of its digits is 9216, while the sum is 29.

The square root of 31484432 is about 5611.0990010870. The cubic root of 31484432 is about 315.7659432214.

The spelling of 31484432 in words is "thirty-one million, four hundred eighty-four thousand, four hundred thirty-two".