422145456 has 20 divisors (see below), whose sum is σ = 1090542552. Its totient is φ = 140715136.

The previous prime is 422145443. The next prime is 422145487. The reversal of 422145456 is 654541224.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4397301 + ... + 4397396.

Almost surely, 2^422145456 is an apocalyptic number.

It is an amenable number.

422145456 is an abundant number, since it is smaller than the sum of its proper divisors (668397096).

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

422145456 is a wasteful number, since it uses less digits than its factorization.

422145456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8794708 (or 8794702 counting only the distinct ones).

The product of its digits is 38400, while the sum is 33.

The square root of 422145456 is about 20546.1786227999. The cubic root of 422145456 is about 750.1602359857.

The spelling of 422145456 in words is "four hundred twenty-two million, one hundred forty-five thousand, four hundred fifty-six".