12162880 has 56 divisors (see below), whose sum is σ = 29260800. Its totient is φ = 4815360.

The previous prime is 12162859. The next prime is 12162893. The reversal of 12162880 is 8826121.

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

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, 61021 + ... + 61219.

Almost surely, 2^12162880 is an apocalyptic number.

12162880 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 12162880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14630400).

12162880 is an abundant number, since it is smaller than the sum of its proper divisors (17097920).

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

12162880 is a wasteful number, since it uses less digits than its factorization.

12162880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407 (or 397 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 12162880 is about 3487.5320787055. The cubic root of 12162880 is about 229.9740361366.

It can be divided in two parts, 1216 and 2880, that added together give a 12-th power (4096 = 2¹²).

The spelling of 12162880 in words is "twelve million, one hundred sixty-two thousand, eight hundred eighty".