421333304 has 32 divisors (see below), whose sum is σ = 955968480. Its totient is φ = 169949184.

The previous prime is 421333279. The next prime is 421333309. The reversal of 421333304 is 403333124.

It is a self number, because there is not a number n which added to its sum of digits gives 421333304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421333309) 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, 220337 + ... + 222240.

It is an arithmetic number, because the mean of its divisors is an integer number (29874015).

Almost surely, 2^421333304 is an apocalyptic number.

It is an amenable number.

421333304 is an abundant number, since it is smaller than the sum of its proper divisors (534635176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421333304 is a wasteful number, since it uses less digits than its factorization.

421333304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442607 (or 442603 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 421333304 is about 20526.4050432607. The cubic root of 421333304 is about 749.6788574726.

Adding to 421333304 its reverse (403333124), we get a palindrome (824666428).

The spelling of 421333304 in words is "four hundred twenty-one million, three hundred thirty-three thousand, three hundred four".