421843120 has 40 divisors (see below), whose sum is σ = 983758464. Its totient is φ = 168225792.

The previous prime is 421843109. The next prime is 421843153. The reversal of 421843120 is 21348124.

It is a tau number, because it is divible by the number of its divisors (40).

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 7 ways as a sum of consecutive naturals, for example, 19137 + ... + 34783.

Almost surely, 2^421843120 is an apocalyptic number.

421843120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421843120 is an abundant number, since it is smaller than the sum of its proper divisors (561915344).

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

421843120 is a wasteful number, since it uses less digits than its factorization.

421843120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15997 (or 15991 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 421843120 is about 20538.8198297760. The cubic root of 421843120 is about 749.9811076723.

The spelling of 421843120 in words is "four hundred twenty-one million, eight hundred forty-three thousand, one hundred twenty".