12030990 has 32 divisors (see below), whose sum is σ = 30395520. Its totient is φ = 3039264.

The previous prime is 12030983. The next prime is 12031003. The reversal of 12030990 is 9903021.

It is a happy number.

12030990 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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 12030990.

It is a congruent number.

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, 9984 + ... + 11123.

It is an arithmetic number, because the mean of its divisors is an integer number (949860).

Almost surely, 2^12030990 is an apocalyptic number.

12030990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12030990 is an abundant number, since it is smaller than the sum of its proper divisors (18364530).

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

12030990 is a wasteful number, since it uses less digits than its factorization.

12030990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21136.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 12030990 is about 3468.5717521770. The cubic root of 12030990 is about 229.1397607346.

The spelling of 12030990 in words is "twelve million, thirty thousand, nine hundred ninety".