421959116 has 6 divisors (see below), whose sum is σ = 738428460. Its totient is φ = 210979556.

The previous prime is 421959107. The next prime is 421959119. The reversal of 421959116 is 611959124.

It is a self number, because there is not a number n which added to its sum of digits gives 421959116.

It is not an unprimeable number, because it can be changed into a prime (421959119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52744886 + ... + 52744893.

It is an arithmetic number, because the mean of its divisors is an integer number (123071410).

Almost surely, 2^421959116 is an apocalyptic number.

It is an amenable number.

421959116 is a deficient number, since it is larger than the sum of its proper divisors (316469344).

421959116 is a wasteful number, since it uses less digits than its factorization.

421959116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105489783 (or 105489781 counting only the distinct ones).

The product of its digits is 19440, while the sum is 38.

The square root of 421959116 is about 20541.6434590809. The cubic root of 421959116 is about 750.0498432060.

The spelling of 421959116 in words is "four hundred twenty-one million, nine hundred fifty-nine thousand, one hundred sixteen".