12029990 has 24 divisors (see below), whose sum is σ = 25190352. Its totient is φ = 4124400.

The previous prime is 12029987. The next prime is 12030017. The reversal of 12029990 is 9992021.

12029990 = 88² + 89² + ... + 332².

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 11 ways as a sum of consecutive naturals, for example, 11786 + ... + 12765.

It is an arithmetic number, because the mean of its divisors is an integer number (1049598).

Almost surely, 2^12029990 is an apocalyptic number.

12029990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12029990 is an abundant number, since it is smaller than the sum of its proper divisors (13160362).

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

12029990 is a wasteful number, since it uses less digits than its factorization.

12029990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24572 (or 24565 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 12029990 is about 3468.4275976298. The cubic root of 12029990 is about 229.1334119606.

The spelling of 12029990 in words is "twelve million, twenty-nine thousand, nine hundred ninety".