12232540 has 24 divisors (see below), whose sum is σ = 26001360. Its totient is φ = 4833408.

The previous prime is 12232531. The next prime is 12232541. The reversal of 12232540 is 4523221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12232541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2025 + ... + 5344.

It is an arithmetic number, because the mean of its divisors is an integer number (1083390).

Almost surely, 2^12232540 is an apocalyptic number.

12232540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12232540 is an abundant number, since it is smaller than the sum of its proper divisors (13768820).

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

12232540 is a wasteful number, since it uses less digits than its factorization.

12232540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7461 (or 7459 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 12232540 is about 3497.5048248716. The cubic root of 12232540 is about 230.4122411433.

Adding to 12232540 its reverse (4523221), we get a palindrome (16755761).

The spelling of 12232540 in words is "twelve million, two hundred thirty-two thousand, five hundred forty".