421455000 has 80 divisors (see below), whose sum is σ = 1316672280. Its totient is φ = 112384000.

The previous prime is 421454989. The next prime is 421455029. The reversal of 421455000 is 554124.

421455000 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 an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 952 + ... + 29048.

Almost surely, 2^421455000 is an apocalyptic number.

421455000 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 421455000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (658336140).

421455000 is an abundant number, since it is smaller than the sum of its proper divisors (895217280).

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

421455000 is a wasteful number, since it uses less digits than its factorization.

421455000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28126 (or 28107 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 421455000 is about 20529.3692060911. The cubic root of 421455000 is about 749.7510284712.

The spelling of 421455000 in words is "four hundred twenty-one million, four hundred fifty-five thousand".