1331404424 has 32 divisors (see below), whose sum is σ = 2879686080. Its totient is φ = 565266624.

The previous prime is 1331404387. The next prime is 1331404429. The reversal of 1331404424 is 4244041331.

It is a junction number, because it is equal to n+sod(n) for n = 1331404393 and 1331404402.

It is not an unprimeable number, because it can be changed into a prime (1331404429) 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, 105107 + ... + 117090.

It is an arithmetic number, because the mean of its divisors is an integer number (89990190).

Almost surely, 2^1331404424 is an apocalyptic number.

1331404424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1331404424 is an abundant number, since it is smaller than the sum of its proper divisors (1548281656).

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

1331404424 is a wasteful number, since it uses less digits than its factorization.

1331404424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222317 (or 222313 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 1331404424 is about 36488.4149285770. The cubic root of 1331404424 is about 1100.1114002880. Note that the first 3 decimals are identical.

Adding to 1331404424 its reverse (4244041331), we get a palindrome (5575445755).

The spelling of 1331404424 in words is "one billion, three hundred thirty-one million, four hundred four thousand, four hundred twenty-four".