304002001 has 4 divisors (see below), whose sum is σ = 305759412. Its totient is φ = 302244592.

The previous prime is 304001993. The next prime is 304002019. The reversal of 304002001 is 100200403.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 231070401 + 72931600 = 15201^2 + 8540^2 .

It is a cyclic number.

It is not a de Polignac number, because 304002001 - 2³ = 304001993 is a prime.

It is a super-2 number, since 2×304002001² = 184834433224008002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (304002031) 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, 878446 + ... + 878791.

It is an arithmetic number, because the mean of its divisors is an integer number (76439853).

Almost surely, 2^304002001 is an apocalyptic number.

It is an amenable number.

304002001 is a deficient number, since it is larger than the sum of its proper divisors (1757411).

304002001 is a wasteful number, since it uses less digits than its factorization.

304002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757410.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 304002001 is about 17435.6531566787. The cubic root of 304002001 is about 672.3965566444.

Adding to 304002001 its reverse (100200403), we get a palindrome (404202404).

The spelling of 304002001 in words is "three hundred four million, two thousand, one".