421450920 has 96 divisors (see below), whose sum is σ = 1494249120. Its totient is φ = 102168960.

The previous prime is 421450889. The next prime is 421450937. The reversal of 421450920 is 29054124.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49254 + ... + 57173.

It is an arithmetic number, because the mean of its divisors is an integer number (15565095).

Almost surely, 2^421450920 is an apocalyptic number.

421450920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421450920 is an abundant number, since it is smaller than the sum of its proper divisors (1072798200).

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

421450920 is a wasteful number, since it uses less digits than its factorization.

421450920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106455 (or 106448 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 421450920 is about 20529.2698360171. The cubic root of 421450920 is about 749.7486090796.

The spelling of 421450920 in words is "four hundred twenty-one million, four hundred fifty thousand, nine hundred twenty".