422543451 has 32 divisors (see below), whose sum is σ = 651386880. Its totient is φ = 240948000.

The previous prime is 422543411. The next prime is 422543453. The reversal of 422543451 is 154345224.

It is not a de Polignac number, because 422543451 - 2¹¹ = 422541403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (422543453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92446 + ... + 96908.

It is an arithmetic number, because the mean of its divisors is an integer number (20355840).

Almost surely, 2^422543451 is an apocalyptic number.

422543451 is a deficient number, since it is larger than the sum of its proper divisors (228843429).

422543451 is a wasteful number, since it uses less digits than its factorization.

422543451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4647.

The product of its digits is 19200, while the sum is 30.

The square root of 422543451 is about 20555.8617187410. The cubic root of 422543451 is about 750.3959100813.

Adding to 422543451 its reverse (154345224), we get a palindrome (576888675).

The spelling of 422543451 in words is "four hundred twenty-two million, five hundred forty-three thousand, four hundred fifty-one".