304221045 has 8 divisors (see below), whose sum is σ = 486753696. Its totient is φ = 162251216.

The previous prime is 304221031. The next prime is 304221089. The reversal of 304221045 is 540122403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 304221045 - 2¹¹ = 304218997 is a prime.

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, 10140687 + ... + 10140716.

It is an arithmetic number, because the mean of its divisors is an integer number (60844212).

Almost surely, 2^304221045 is an apocalyptic number.

It is an amenable number.

304221045 is a deficient number, since it is larger than the sum of its proper divisors (182532651).

304221045 is a wasteful number, since it uses less digits than its factorization.

304221045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20281411.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 304221045 is about 17441.9335224051. The cubic root of 304221045 is about 672.5580128964.

Adding to 304221045 its reverse (540122403), we get a palindrome (844343448).

The spelling of 304221045 in words is "three hundred four million, two hundred twenty-one thousand, forty-five".