421423600 has 60 divisors (see below), whose sum is σ = 1090365976. Its totient is φ = 155600640.

The previous prime is 421423589. The next prime is 421423601. The reversal of 421423600 is 6324124.

It is a happy number.

421423600 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421423601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35322 + ... + 45721.

Almost surely, 2^421423600 is an apocalyptic number.

421423600 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421423600 is an abundant number, since it is smaller than the sum of its proper divisors (668942376).

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

421423600 is a wasteful number, since it uses less digits than its factorization.

421423600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81074 (or 81063 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 421423600 is about 20528.6044338138. The cubic root of 421423600 is about 749.7324082413.

Adding to 421423600 its reverse (6324124), we get a palindrome (427747724).

The spelling of 421423600 in words is "four hundred twenty-one million, four hundred twenty-three thousand, six hundred".