12243434 has 24 divisors (see below), whose sum is σ = 22623300. Its totient is φ = 4937856.

The previous prime is 12243431. The next prime is 12243443. The reversal of 12243434 is 43434221.

It can be written as a sum of positive squares in 2 ways, for example, as 11526025 + 717409 = 3395^2 + 847^2 .

It is a super-2 number, since 2×12243434² = 299803352224712, which contains 22 as substring.

12243434 is a modest number, since divided by 3434 gives 1224 as remainder.

It is not an unprimeable number, because it can be changed into a prime (12243431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2009 + ... + 5340.

Almost surely, 2^12243434 is an apocalyptic number.

12243434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12243434 is a deficient number, since it is larger than the sum of its proper divisors (10379866).

12243434 is a wasteful number, since it uses less digits than its factorization.

12243434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7382 (or 7375 counting only the distinct ones).

The product of its digits is 2304, while the sum is 23.

The square root of 12243434 is about 3499.0618742743. The cubic root of 12243434 is about 230.4806206779.

Adding to 12243434 its reverse (43434221), we get a palindrome (55677655).

The spelling of 12243434 in words is "twelve million, two hundred forty-three thousand, four hundred thirty-four".