1331404408 has 16 divisors (see below), whose sum is σ = 2497966560. Its totient is φ = 665280000.

The previous prime is 1331404387. The next prime is 1331404429. The reversal of 1331404408 is 8044041331.

It is an interprime number because it is at equal distance from previous prime (1331404387) and next prime (1331404429).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39168 + ... + 64783.

It is an arithmetic number, because the mean of its divisors is an integer number (156122910).

Almost surely, 2^1331404408 is an apocalyptic number.

It is an amenable number.

1331404408 is a deficient number, since it is larger than the sum of its proper divisors (1166562152).

1331404408 is a wasteful number, since it uses less digits than its factorization.

1331404408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105558 (or 105554 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 1331404408 is about 36488.4147093293. The cubic root of 1331404408 is about 1100.1113958812. Note that the first 3 decimals are identical.

Adding to 1331404408 its reverse (8044041331), we get a palindrome (9375445739).

The spelling of 1331404408 in words is "one billion, three hundred thirty-one million, four hundred four thousand, four hundred eight".