12831480 has 96 divisors (see below), whose sum is σ = 43167600. Its totient is φ = 3390336.

The previous prime is 12831463. The next prime is 12831487. The reversal of 12831480 is 8413821.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12831487) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 117666 + ... + 117774.

Almost surely, 2^12831480 is an apocalyptic number.

12831480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12831480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21583800).

12831480 is an abundant number, since it is smaller than the sum of its proper divisors (30336120).

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

12831480 is a wasteful number, since it uses less digits than its factorization.

12831480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 12831480 is about 3582.1055260838. The cubic root of 12831480 is about 234.1130288926.

The spelling of 12831480 in words is "twelve million, eight hundred thirty-one thousand, four hundred eighty".