422414821 has 4 divisors (see below), whose sum is σ = 444647200. Its totient is φ = 400182444.

The previous prime is 422414819. The next prime is 422414831. The reversal of 422414821 is 128414224.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 422414821 - 2¹ = 422414819 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 422414821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422414831) 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, 11116161 + ... + 11116198.

It is an arithmetic number, because the mean of its divisors is an integer number (111161800).

Almost surely, 2^422414821 is an apocalyptic number.

It is an amenable number.

422414821 is a deficient number, since it is larger than the sum of its proper divisors (22232379).

422414821 is a wasteful number, since it uses less digits than its factorization.

422414821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22232378.

The product of its digits is 4096, while the sum is 28.

The square root of 422414821 is about 20552.7326893530. The cubic root of 422414821 is about 750.3197575800.

The spelling of 422414821 in words is "four hundred twenty-two million, four hundred fourteen thousand, eight hundred twenty-one".