1232205478 has 16 divisors (see below), whose sum is σ = 2114196480. Its totient is φ = 527627016.

The previous prime is 1232205437. The next prime is 1232205479. The reversal of 1232205478 is 8745022321.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232205479) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 21558 + ... + 54121.

It is an arithmetic number, because the mean of its divisors is an integer number (132137280).

Almost surely, 2^1232205478 is an apocalyptic number.

1232205478 is a deficient number, since it is larger than the sum of its proper divisors (881991002).

1232205478 is a wasteful number, since it uses less digits than its factorization.

1232205478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76851.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 1232205478 is about 35102.7844764486. The cubic root of 1232205478 is about 1072.0812776006.

Adding to 1232205478 its reverse (8745022321), we get a palindrome (9977227799).

The spelling of 1232205478 in words is "one billion, two hundred thirty-two million, two hundred five thousand, four hundred seventy-eight".