1002304661 has 4 divisors (see below), whose sum is σ = 1002540000. Its totient is φ = 1002069324.

The previous prime is 1002304637. The next prime is 1002304669. The reversal of 1002304661 is 1664032001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002304661 is a prime.

It is a super-2 number, since 2×1002304661² = 2009229266924649842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002304669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111161 + ... + 119838.

It is an arithmetic number, because the mean of its divisors is an integer number (250635000).

Almost surely, 2^1002304661 is an apocalyptic number.

It is an amenable number.

1002304661 is a deficient number, since it is larger than the sum of its proper divisors (235339).

1002304661 is an equidigital number, since it uses as much as digits as its factorization.

1002304661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235338.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1002304661 is about 31659.1955204171. The cubic root of 1002304661 is about 1000.7676309253.

Adding to 1002304661 its reverse (1664032001), we get a palindrome (2666336662).

The spelling of 1002304661 in words is "one billion, two million, three hundred four thousand, six hundred sixty-one".