421165224 has 32 divisors (see below), whose sum is σ = 1169904000. Its totient is φ = 140388336.

The previous prime is 421165223. The next prime is 421165247. The reversal of 421165224 is 422561124.

421165224 is a `hidden beast` number, since 4 + 2 + 1 + 1 + 652 + 2 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (421165223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 974704 + ... + 975135.

It is an arithmetic number, because the mean of its divisors is an integer number (36559500).

Almost surely, 2^421165224 is an apocalyptic number.

It is an amenable number.

421165224 is an abundant number, since it is smaller than the sum of its proper divisors (748738776).

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

421165224 is a wasteful number, since it uses less digits than its factorization.

421165224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1949854 (or 1949844 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 421165224 is about 20522.3103962492. The cubic root of 421165224 is about 749.5791558978.

The spelling of 421165224 in words is "four hundred twenty-one million, one hundred sixty-five thousand, two hundred twenty-four".