421985308 has 12 divisors (see below), whose sum is σ = 746088112. Its totient is φ = 208817280.

The previous prime is 421985257. The next prime is 421985309. The reversal of 421985308 is 803589124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421985309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 543408 + ... + 544183.

Almost surely, 2^421985308 is an apocalyptic number.

It is an amenable number.

421985308 is a deficient number, since it is larger than the sum of its proper divisors (324102804).

421985308 is a wasteful number, since it uses less digits than its factorization.

421985308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087692 (or 1087690 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 421985308 is about 20542.2809833767. The cubic root of 421985308 is about 750.0653620073.

The spelling of 421985308 in words is "four hundred twenty-one million, nine hundred eighty-five thousand, three hundred eight".