12078180 has 48 divisors (see below), whose sum is σ = 37578240. Its totient is φ = 3220704.

The previous prime is 12078173. The next prime is 12078193. The reversal of 12078180 is 8187021.

It is a super-2 number, since 2×12078180² = 291764864224800, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10644 + ... + 11723.

It is an arithmetic number, because the mean of its divisors is an integer number (782880).

Almost surely, 2^12078180 is an apocalyptic number.

12078180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12078180 is an abundant number, since it is smaller than the sum of its proper divisors (25500060).

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

12078180 is a wasteful number, since it uses less digits than its factorization.

12078180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22385 (or 22377 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 12078180 is about 3475.3676064555. The cubic root of 12078180 is about 229.4389602288.

The spelling of 12078180 in words is "twelve million, seventy-eight thousand, one hundred eighty".