1321590334 has 16 divisors (see below), whose sum is σ = 2088679680. Its totient is φ = 625429080.

The previous prime is 1321590331. The next prime is 1321590341. The reversal of 1321590334 is 4330951231.

It is a junction number, because it is equal to n+sod(n) for n = 1321590296 and 1321590305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321590331) 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 7 ways as a sum of consecutive naturals, for example, 26149 + ... + 57679.

It is an arithmetic number, because the mean of its divisors is an integer number (130542480).

Almost surely, 2^1321590334 is an apocalyptic number.

1321590334 is a deficient number, since it is larger than the sum of its proper divisors (767089346).

1321590334 is a wasteful number, since it uses less digits than its factorization.

1321590334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32655.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 1321590334 is about 36353.6839123630. The cubic root of 1321590334 is about 1097.4016727928.

The spelling of 1321590334 in words is "one billion, three hundred twenty-one million, five hundred ninety thousand, three hundred thirty-four".