1234431232 has 18 divisors (see below), whose sum is σ = 2464040978. Its totient is φ = 617215488.

The previous prime is 1234431203. The next prime is 1234431271. The reversal of 1234431232 is 2321344321.

It can be written as a sum of positive squares in only one way, i.e., 1226680576 + 7750656 = 35024^2 + 2784^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1234431197 and 1234431206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2410743 + ... + 2411254.

Almost surely, 2^1234431232 is an apocalyptic number.

It is an amenable number.

1234431232 is a deficient number, since it is larger than the sum of its proper divisors (1229609746).

1234431232 is an frugal number, since it uses more digits than its factorization.

1234431232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4822013 (or 4821999 counting only the distinct ones).

The product of its digits is 3456, while the sum is 25.

The square root of 1234431232 is about 35134.4735551851. The cubic root of 1234431232 is about 1072.7263956258.

Adding to 1234431232 its reverse (2321344321), we get a palindrome (3555775553).

The spelling of 1234431232 in words is "one billion, two hundred thirty-four million, four hundred thirty-one thousand, two hundred thirty-two".