421324704 has 36 divisors (see below), whose sum is σ = 1198142946. Its totient is φ = 140441472.

The previous prime is 421324703. The next prime is 421324727. The reversal of 421324704 is 407423124.

It can be written as a sum of positive squares in only one way, i.e., 237776400 + 183548304 = 15420^2 + 13548^2 .

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

It is not an unprimeable number, because it can be changed into a prime (421324703) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 731179 + ... + 731754.

Almost surely, 2^421324704 is an apocalyptic number.

It is an amenable number.

421324704 is an abundant number, since it is smaller than the sum of its proper divisors (776818242).

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

421324704 is a wasteful number, since it uses less digits than its factorization.

421324704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1462949 (or 1462938 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 421324704 is about 20526.1955559232. The cubic root of 421324704 is about 749.6737567744.

Adding to 421324704 its reverse (407423124), we get a palindrome (828747828).

The spelling of 421324704 in words is "four hundred twenty-one million, three hundred twenty-four thousand, seven hundred four".