421858472 has 16 divisors (see below), whose sum is σ = 903982560. Its totient is φ = 180796464.

The previous prime is 421858427. The next prime is 421858513. The reversal of 421858472 is 274858124.

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 3 ways as a sum of consecutive naturals, for example, 3766538 + ... + 3766649.

It is an arithmetic number, because the mean of its divisors is an integer number (56498910).

Almost surely, 2^421858472 is an apocalyptic number.

It is an amenable number.

421858472 is an abundant number, since it is smaller than the sum of its proper divisors (482124088).

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

421858472 is a wasteful number, since it uses less digits than its factorization.

421858472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7533200 (or 7533196 counting only the distinct ones).

The product of its digits is 143360, while the sum is 41.

The square root of 421858472 is about 20539.1935576838. The cubic root of 421858472 is about 749.9902055017.

The spelling of 421858472 in words is "four hundred twenty-one million, eight hundred fifty-eight thousand, four hundred seventy-two".