422145304 has 32 divisors (see below), whose sum is σ = 915505920. Its totient is φ = 178737696.

The previous prime is 422145301. The next prime is 422145313. The reversal of 422145304 is 403541224.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422145301) 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, 40764 + ... + 50059.

It is an arithmetic number, because the mean of its divisors is an integer number (28609560).

Almost surely, 2^422145304 is an apocalyptic number.

It is an amenable number.

422145304 is an abundant number, since it is smaller than the sum of its proper divisors (493360616).

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

422145304 is a wasteful number, since it uses less digits than its factorization.

422145304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90919 (or 90915 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 422145304 is about 20546.1749238149. The cubic root of 422145304 is about 750.1601459501.

Adding to 422145304 its reverse (403541224), we get a palindrome (825686528).

The spelling of 422145304 in words is "four hundred twenty-two million, one hundred forty-five thousand, three hundred four".