1004264321 has 4 divisors (see below), whose sum is σ = 1011004500. Its totient is φ = 997524144.

The previous prime is 1004264281. The next prime is 1004264329. The reversal of 1004264321 is 1234624001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1234624001 = 13 ⋅94971077.

It can be written as a sum of positive squares in 2 ways, for example, as 286828096 + 717436225 = 16936^2 + 26785^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1004264321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1004264329) 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 3 ways as a sum of consecutive naturals, for example, 3369866 + ... + 3370163.

It is an arithmetic number, because the mean of its divisors is an integer number (252751125).

Almost surely, 2^1004264321 is an apocalyptic number.

It is an amenable number.

1004264321 is a deficient number, since it is larger than the sum of its proper divisors (6740179).

1004264321 is an equidigital number, since it uses as much as digits as its factorization.

1004264321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6740178.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1004264321 is about 31690.1297094221. The cubic root of 1004264321 is about 1001.4194246138.

Adding to 1004264321 its reverse (1234624001), we get a palindrome (2238888322).

The spelling of 1004264321 in words is "one billion, four million, two hundred sixty-four thousand, three hundred twenty-one".