31484120 has 32 divisors (see below), whose sum is σ = 72180720. Its totient is φ = 12355200.

The previous prime is 31484093. The next prime is 31484129. The reversal of 31484120 is 2148413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31484129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5306 + ... + 9545.

Almost surely, 2^31484120 is an apocalyptic number.

It is an amenable number.

31484120 is an abundant number, since it is smaller than the sum of its proper divisors (40696600).

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

31484120 is a wasteful number, since it uses less digits than its factorization.

31484120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14915 (or 14911 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 31484120 is about 5611.0711989780. The cubic root of 31484120 is about 315.7649001736.

The spelling of 31484120 in words is "thirty-one million, four hundred eighty-four thousand, one hundred twenty".