422120445 has 16 divisors (see below), whose sum is σ = 675767232. Its totient is φ = 225006080.

The previous prime is 422120437. The next prime is 422120453. The reversal of 422120445 is 544021224.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (422120437) and next prime (422120453).

It is not a de Polignac number, because 422120445 - 2³ = 422120437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24454 + ... + 37976.

It is an arithmetic number, because the mean of its divisors is an integer number (42235452).

Almost surely, 2^422120445 is an apocalyptic number.

It is an amenable number.

422120445 is a deficient number, since it is larger than the sum of its proper divisors (253646787).

422120445 is a wasteful number, since it uses less digits than its factorization.

422120445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15612.

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 422120445 is about 20545.5699604562. The cubic root of 422120445 is about 750.1454206908.

Adding to 422120445 its reverse (544021224), we get a palindrome (966141669).

The spelling of 422120445 in words is "four hundred twenty-two million, one hundred twenty thousand, four hundred forty-five".