421042400304 has 80 divisors (see below), whose sum is σ = 1121112803712. Its totient is φ = 136082870784.

The previous prime is 421042400299. The next prime is 421042400423. The reversal of 421042400304 is 403004240124.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 461734 + ... + 1027269.

Almost surely, 2^421042400304 is an apocalyptic number.

It is an amenable number.

421042400304 is an abundant number, since it is smaller than the sum of its proper divisors (700070403408).

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

421042400304 is a wasteful number, since it uses less digits than its factorization.

421042400304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489194 (or 1489188 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 421042400304 its reverse (403004240124), we get a palindrome (824046640428).

The spelling of 421042400304 in words is "four hundred twenty-one billion, forty-two million, four hundred thousand, three hundred four".