423224451 has 48 divisors (see below), whose sum is σ = 677188512. Its totient is φ = 253094400.

The previous prime is 423224443. The next prime is 423224453. The reversal of 423224451 is 154422324.

It is not a de Polignac number, because 423224451 - 2³ = 423224443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (423224453) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 812071 + ... + 812591.

It is an arithmetic number, because the mean of its divisors is an integer number (14108094).

Almost surely, 2^423224451 is an apocalyptic number.

423224451 is a deficient number, since it is larger than the sum of its proper divisors (253964061).

423224451 is a wasteful number, since it uses less digits than its factorization.

423224451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 724 (or 721 counting only the distinct ones).

The product of its digits is 7680, while the sum is 27.

The square root of 423224451 is about 20572.4196680896. The cubic root of 423224451 is about 750.7988235392.

Adding to 423224451 its reverse (154422324), we get a palindrome (577646775).

The spelling of 423224451 in words is "four hundred twenty-three million, two hundred twenty-four thousand, four hundred fifty-one".