12087490 has 16 divisors (see below), whose sum is σ = 22508280. Its totient is φ = 4668160.

The previous prime is 12087463. The next prime is 12087503. The reversal of 12087490 is 9478021.

It can be written as a sum of positive squares in 4 ways, for example, as 11282881 + 804609 = 3359^2 + 897^2 .

It is a super-2 number, since 2×12087490² = 292214829000200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20551 + ... + 21130.

Almost surely, 2^12087490 is an apocalyptic number.

12087490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12087490 is a deficient number, since it is larger than the sum of its proper divisors (10420790).

12087490 is a wasteful number, since it uses less digits than its factorization.

12087490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41717.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 12087490 is about 3476.7067750962. The cubic root of 12087490 is about 229.4978964846.

The spelling of 12087490 in words is "twelve million, eighty-seven thousand, four hundred ninety".