422044451 has 4 divisors (see below), whose sum is σ = 422904504. Its totient is φ = 421184400.

The previous prime is 422044439. The next prime is 422044489. The reversal of 422044451 is 154440224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 422044451 - 2¹⁸ = 421782307 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 422044451.

It is not an unprimeable number, because it can be changed into a prime (422044151) 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, 429290 + ... + 430271.

It is an arithmetic number, because the mean of its divisors is an integer number (105726126).

Almost surely, 2^422044451 is an apocalyptic number.

422044451 is a deficient number, since it is larger than the sum of its proper divisors (860053).

422044451 is an equidigital number, since it uses as much as digits as its factorization.

422044451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860052.

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 422044451 is about 20543.7204760968. The cubic root of 422044451 is about 750.1004019661.

Adding to 422044451 its reverse (154440224), we get a palindrome (576484675).

The spelling of 422044451 in words is "four hundred twenty-two million, forty-four thousand, four hundred fifty-one".