1232444340 has 72 divisors (see below), whose sum is σ = 3817981440. Its totient is φ = 321657024.

The previous prime is 1232444309. The next prime is 1232444383. The reversal of 1232444340 is 434442321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64380 + ... + 81299.

It is an arithmetic number, because the mean of its divisors is an integer number (53027520).

Almost surely, 2^1232444340 is an apocalyptic number.

1232444340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232444340 is an abundant number, since it is smaller than the sum of its proper divisors (2585537100).

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

1232444340 is a wasteful number, since it uses less digits than its factorization.

1232444340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145741 (or 145736 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 1232444340 is about 35106.1866342672. The cubic root of 1232444340 is about 1072.1505471441.

Adding to 1232444340 its reverse (434442321), we get a palindrome (1666886661).

The spelling of 1232444340 in words is "one billion, two hundred thirty-two million, four hundred forty-four thousand, three hundred forty".