12087380 has 12 divisors (see below), whose sum is σ = 25383540. Its totient is φ = 4834944.

The previous prime is 12087379. The next prime is 12087409. The reversal of 12087380 is 8378021.

It can be written as a sum of positive squares in 2 ways, for example, as 1731856 + 10355524 = 1316^2 + 3218^2 .

It is a super-2 number, since 2×12087380² = 292209510528800, which contains 22 as substring.

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, 302165 + ... + 302204.

It is an arithmetic number, because the mean of its divisors is an integer number (2115295).

Almost surely, 2^12087380 is an apocalyptic number.

12087380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12087380 is an abundant number, since it is smaller than the sum of its proper divisors (13296160).

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

12087380 is a wasteful number, since it uses less digits than its factorization.

12087380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604378 (or 604376 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 12087380 is about 3476.6909554920. The cubic root of 12087380 is about 229.4972003146.

The spelling of 12087380 in words is "twelve million, eighty-seven thousand, three hundred eighty".