12412880 has 20 divisors (see below), whose sum is σ = 28860132. Its totient is φ = 4965120.

The previous prime is 12412879. The next prime is 12412901. The reversal of 12412880 is 8821421.

It can be written as a sum of positive squares in 2 ways, for example, as 7011904 + 5400976 = 2648^2 + 2324^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77501 + ... + 77660.

Almost surely, 2^12412880 is an apocalyptic number.

12412880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12412880 is an abundant number, since it is smaller than the sum of its proper divisors (16447252).

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

12412880 is a wasteful number, since it uses less digits than its factorization.

12412880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155174 (or 155168 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 26.

The square root of 12412880 is about 3523.1917347769. The cubic root of 12412880 is about 231.5390172564.

The spelling of 12412880 in words is "twelve million, four hundred twelve thousand, eight hundred eighty".