421300000 has 144 divisors (see below), whose sum is σ = 1133927424. Its totient is φ = 152800000.

The previous prime is 421299997. The next prime is 421300027. The reversal of 421300000 is 3124.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a self number, because there is not a number n which added to its sum of digits gives 421300000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1099809 + ... + 1100191.

It is an arithmetic number, because the mean of its divisors is an integer number (7874496).

Almost surely, 2^421300000 is an apocalyptic number.

421300000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421300000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (566963712).

421300000 is an abundant number, since it is smaller than the sum of its proper divisors (712627424).

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

421300000 is an equidigital number, since it uses as much as digits as its factorization.

421300000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 421300000 is about 20525.5937794744. The cubic root of 421300000 is about 749.6591043363.

Adding to 421300000 its reverse (3124), we get a palindrome (421303124).

The spelling of 421300000 in words is "four hundred twenty-one million, three hundred thousand".