1331400430 has 16 divisors (see below), whose sum is σ = 2426857920. Its totient is φ = 525818592.

The previous prime is 1331400419. The next prime is 1331400479. The reversal of 1331400430 is 340041331.

It is a junction number, because it is equal to n+sod(n) for n = 1331400398 and 1331400407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 841869 + ... + 843448.

It is an arithmetic number, because the mean of its divisors is an integer number (151678620).

Almost surely, 2^1331400430 is an apocalyptic number.

1331400430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1331400430 is a deficient number, since it is larger than the sum of its proper divisors (1095457490).

1331400430 is a wasteful number, since it uses less digits than its factorization.

1331400430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1685403.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1331400430 is about 36488.3601988360. The cubic root of 1331400430 is about 1100.1103002343.

Adding to 1331400430 its reverse (340041331), we get a palindrome (1671441761).

The spelling of 1331400430 in words is "one billion, three hundred thirty-one million, four hundred thousand, four hundred thirty".