1331404430 has 32 divisors (see below), whose sum is σ = 2479196160. Its totient is φ = 514265760.

The previous prime is 1331404429. The next prime is 1331404433. The reversal of 1331404430 is 344041331.

It is a junction number, because it is equal to n+sod(n) for n = 1331404396 and 1331404405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331404433) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 146561 + ... + 155379.

It is an arithmetic number, because the mean of its divisors is an integer number (77474880).

Almost surely, 2^1331404430 is an apocalyptic number.

1331404430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1331404430 is a deficient number, since it is larger than the sum of its proper divisors (1147791730).

1331404430 is a wasteful number, since it uses less digits than its factorization.

1331404430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9344.

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

The square root of 1331404430 is about 36488.4150107949. The cubic root of 1331404430 is about 1100.1114019406. Note that the first 3 decimals are identical.

Adding to 1331404430 its reverse (344041331), we get a palindrome (1675445761).

The spelling of 1331404430 in words is "one billion, three hundred thirty-one million, four hundred four thousand, four hundred thirty".