12304390 has 24 divisors (see below), whose sum is σ = 25764912. Its totient is φ = 4218480.

The previous prime is 12304373. The next prime is 12304403. The reversal of 12304390 is 9340321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12066 + ... + 13045.

It is an arithmetic number, because the mean of its divisors is an integer number (1073538).

Almost surely, 2^12304390 is an apocalyptic number.

12304390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12304390 is an abundant number, since it is smaller than the sum of its proper divisors (13460522).

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

12304390 is a wasteful number, since it uses less digits than its factorization.

12304390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25132 (or 25125 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 12304390 is about 3507.7613943939. The cubic root of 12304390 is about 230.8624831954.

The spelling of 12304390 in words is "twelve million, three hundred four thousand, three hundred ninety".