451430422 has 4 divisors (see below), whose sum is σ = 677145636. Its totient is φ = 225715210.

The previous prime is 451430381. The next prime is 451430423. The reversal of 451430422 is 224034154.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451430423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112857604 + ... + 112857607.

It is an arithmetic number, because the mean of its divisors is an integer number (169286409).

Almost surely, 2^451430422 is an apocalyptic number.

451430422 is a deficient number, since it is larger than the sum of its proper divisors (225715214).

451430422 is a wasteful number, since it uses less digits than its factorization.

451430422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225715213.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 451430422 is about 21246.8920550748. The cubic root of 451430422 is about 767.1205334842.

Adding to 451430422 its reverse (224034154), we get a palindrome (675464576).

The spelling of 451430422 in words is "four hundred fifty-one million, four hundred thirty thousand, four hundred twenty-two".