12026490 has 32 divisors (see below), whose sum is σ = 32987520. Its totient is φ = 2748864.

The previous prime is 12026471. The next prime is 12026507. The reversal of 12026490 is 9462021.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12026490.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28425 + ... + 28844.

It is an arithmetic number, because the mean of its divisors is an integer number (1030860).

Almost surely, 2^12026490 is an apocalyptic number.

12026490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12026490 is an abundant number, since it is smaller than the sum of its proper divisors (20961030).

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

12026490 is a wasteful number, since it uses less digits than its factorization.

12026490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57286.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 12026490 is about 3467.9230095260. The cubic root of 12026490 is about 229.1111884806. Note that the first 4 decimals are identical.

The spelling of 12026490 in words is "twelve million, twenty-six thousand, four hundred ninety".