421004303 has 8 divisors (see below), whose sum is σ = 451141488. Its totient is φ = 391464064.

The previous prime is 421004279. The next prime is 421004317. The reversal of 421004303 is 303400124.

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 421004303 - 2⁸ = 421004047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421004383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147776 + ... + 150597.

It is an arithmetic number, because the mean of its divisors is an integer number (56392686).

Almost surely, 2^421004303 is an apocalyptic number.

421004303 is a deficient number, since it is larger than the sum of its proper divisors (30137185).

421004303 is a wasteful number, since it uses less digits than its factorization.

421004303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298473.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 421004303 is about 20518.3893861092. The cubic root of 421004303 is about 749.4836760351.

Adding to 421004303 its reverse (303400124), we get a palindrome (724404427).

The spelling of 421004303 in words is "four hundred twenty-one million, four thousand, three hundred three".