1232204240 has 20 divisors (see below), whose sum is σ = 2864875044. Its totient is φ = 492881664.

The previous prime is 1232204227. The next prime is 1232204249. The reversal of 1232204240 is 424022321.

It can be written as a sum of positive squares in 2 ways, for example, as 157151296 + 1075052944 = 12536^2 + 32788^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232204249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7701197 + ... + 7701356.

Almost surely, 2^1232204240 is an apocalyptic number.

1232204240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1232204240 is an abundant number, since it is smaller than the sum of its proper divisors (1632670804).

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

1232204240 is a wasteful number, since it uses less digits than its factorization.

1232204240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15402566 (or 15402560 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 1232204240 is about 35102.7668425154. The cubic root of 1232204240 is about 1072.0809185595.

Adding to 1232204240 its reverse (424022321), we get a palindrome (1656226561).

The spelling of 1232204240 in words is "one billion, two hundred thirty-two million, two hundred four thousand, two hundred forty".