421385608 has 32 divisors (see below), whose sum is σ = 906744960. Its totient is φ = 179838720.

The previous prime is 421385603. The next prime is 421385609. The reversal of 421385608 is 806583124.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (421385603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2116 + ... + 29107.

It is an arithmetic number, because the mean of its divisors is an integer number (28335780).

Almost surely, 2^421385608 is an apocalyptic number.

It is an amenable number.

421385608 is an abundant number, since it is smaller than the sum of its proper divisors (485359352).

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

421385608 is a wasteful number, since it uses less digits than its factorization.

421385608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31477 (or 31473 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 421385608 is about 20527.6790699777. The cubic root of 421385608 is about 749.7098777125.

The spelling of 421385608 in words is "four hundred twenty-one million, three hundred eighty-five thousand, six hundred eight".