1331331424 has 24 divisors (see below), whose sum is σ = 2623265568. Its totient is φ = 665105280.

The previous prime is 1331331403. The next prime is 1331331439. The reversal of 1331331424 is 4241331331.

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 in 3 ways as a sum of consecutive naturals, for example, 22494 + ... + 56290.

It is an arithmetic number, because the mean of its divisors is an integer number (109302732).

Almost surely, 2^1331331424 is an apocalyptic number.

It is an amenable number.

1331331424 is a deficient number, since it is larger than the sum of its proper divisors (1291934144).

1331331424 is a wasteful number, since it uses less digits than its factorization.

1331331424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35038 (or 35030 counting only the distinct ones).

The product of its digits is 2592, while the sum is 25.

The square root of 1331331424 is about 36487.4145973649. The cubic root of 1331331424 is about 1100.0912938003.

Adding to 1331331424 its reverse (4241331331), we get a palindrome (5572662755).

The spelling of 1331331424 in words is "one billion, three hundred thirty-one million, three hundred thirty-one thousand, four hundred twenty-four".