422540451 has 6 divisors (see below), whose sum is σ = 610336220. Its totient is φ = 281693628.

The previous prime is 422540441. The next prime is 422540453. The reversal of 422540451 is 154045224.

It is not a de Polignac number, because 422540451 - 2¹⁰ = 422539427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422540453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23474461 + ... + 23474478.

Almost surely, 2^422540451 is an apocalyptic number.

422540451 is a deficient number, since it is larger than the sum of its proper divisors (187795769).

422540451 is a wasteful number, since it uses less digits than its factorization.

422540451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46948945 (or 46948942 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 422540451 is about 20555.7887467253. The cubic root of 422540451 is about 750.3941341747.

Adding to 422540451 its reverse (154045224), we get a palindrome (576585675).

The spelling of 422540451 in words is "four hundred twenty-two million, five hundred forty thousand, four hundred fifty-one".