1331404232 has 16 divisors (see below), whose sum is σ = 2643229260. Its totient is φ = 626543104.

The previous prime is 1331404229. The next prime is 1331404241. The reversal of 1331404232 is 2324041331.

It can be written as a sum of positive squares in 2 ways, for example, as 1259256196 + 72148036 = 35486^2 + 8494^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1331404198 and 1331404207.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4894733 + ... + 4895004.

Almost surely, 2^1331404232 is an apocalyptic number.

It is an amenable number.

1331404232 is a deficient number, since it is larger than the sum of its proper divisors (1311825028).

1331404232 is a wasteful number, since it uses less digits than its factorization.

1331404232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9789760 (or 9789756 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1331404232 is about 36488.4122976048. The cubic root of 1331404232 is about 1100.1113474062. Note that the first 3 decimals are identical.

Adding to 1331404232 its reverse (2324041331), we get a palindrome (3655445563).

The spelling of 1331404232 in words is "one billion, three hundred thirty-one million, four hundred four thousand, two hundred thirty-two".