421310304 has 36 divisors (see below), whose sum is σ = 1198101996. Its totient is φ = 140436672.

The previous prime is 421310293. The next prime is 421310321. The reversal of 421310304 is 403013124.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 731154 + ... + 731729.

It is an arithmetic number, because the mean of its divisors is an integer number (33280611).

Almost surely, 2^421310304 is an apocalyptic number.

It is an amenable number.

421310304 is an abundant number, since it is smaller than the sum of its proper divisors (776791692).

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

421310304 is a wasteful number, since it uses less digits than its factorization.

421310304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462899 (or 1462888 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 421310304 is about 20525.8447816405. The cubic root of 421310304 is about 749.6652159151.

Adding to 421310304 its reverse (403013124), we get a palindrome (824323428).

The spelling of 421310304 in words is "four hundred twenty-one million, three hundred ten thousand, three hundred four".