421500894 has 8 divisors (see below), whose sum is σ = 843001800. Its totient is φ = 140500296.

The previous prime is 421500887. The next prime is 421500949. The reversal of 421500894 is 498005124.

It is a sphenic number, since it is the product of 3 distinct primes.

421500894 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35125069 + ... + 35125080.

It is an arithmetic number, because the mean of its divisors is an integer number (105375225).

Almost surely, 2^421500894 is an apocalyptic number.

421500894 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

421500894 is a wasteful number, since it uses less digits than its factorization.

421500894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70250154.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 421500894 is about 20530.4869401580. The cubic root of 421500894 is about 749.7782419932.

The spelling of 421500894 in words is "four hundred twenty-one million, five hundred thousand, eight hundred ninety-four".