423222044 has 48 divisors (see below), whose sum is σ = 880373760. Its totient is φ = 174199680.

The previous prime is 423222031. The next prime is 423222047. The reversal of 423222044 is 440222324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423222047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117137 + ... + 120695.

It is an arithmetic number, because the mean of its divisors is an integer number (18341120).

Almost surely, 2^423222044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423222044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (440186880).

423222044 is an abundant number, since it is smaller than the sum of its proper divisors (457151716).

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

423222044 is a wasteful number, since it uses less digits than its factorization.

423222044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3738 (or 3736 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 423222044 is about 20572.3611673527. The cubic root of 423222044 is about 750.7974001997.

Adding to 423222044 its reverse (440222324), we get a palindrome (863444368).

The spelling of 423222044 in words is "four hundred twenty-three million, two hundred twenty-two thousand, forty-four".