1232540 has 12 divisors (see below), whose sum is σ = 2588376. Its totient is φ = 493008.

The previous prime is 1232537. The next prime is 1232563. The reversal of 1232540 is 452321.

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 3 ways as a sum of consecutive naturals, for example, 30794 + ... + 30833.

It is an arithmetic number, because the mean of its divisors is an integer number (215698).

2^1232540 is an apocalyptic number.

1232540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232540 is an abundant number, since it is smaller than the sum of its proper divisors (1355836).

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

1232540 is a wasteful number, since it uses less digits than its factorization.

1232540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61636 (or 61634 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 1232540 is about 1110.1981805065. The cubic root of 1232540 is about 107.2178285859.

Adding to 1232540 its reverse (452321), we get a palindrome (1684861).

The spelling of 1232540 in words is "one million, two hundred thirty-two thousand, five hundred forty".