12434320 has 40 divisors (see below), whose sum is σ = 29533824. Its totient is φ = 4866432.

The previous prime is 12434311. The next prime is 12434347. The reversal of 12434320 is 2343421.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×12434320² = 309224627724800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2107 + ... + 5413.

Almost surely, 2^12434320 is an apocalyptic number.

12434320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12434320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14766912).

12434320 is an abundant number, since it is smaller than the sum of its proper divisors (17099504).

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

12434320 is a wasteful number, since it uses less digits than its factorization.

12434320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3367 (or 3361 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 12434320 is about 3526.2331176483. The cubic root of 12434320 is about 231.6722482539.

Adding to 12434320 its reverse (2343421), we get a palindrome (14777741).

It can be divided in two parts, 1 and 2434320, that added together give a triangular number (2434321 = T₂₂₀₆).

The spelling of 12434320 in words is "twelve million, four hundred thirty-four thousand, three hundred twenty".