422400442 has 8 divisors (see below), whose sum is σ = 642524832. Its totient is φ = 208225500.

The previous prime is 422400431. The next prime is 422400443. The reversal of 422400442 is 244004224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (422400443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1487184 + ... + 1487467.

It is an arithmetic number, because the mean of its divisors is an integer number (80315604).

Almost surely, 2^422400442 is an apocalyptic number.

422400442 is a deficient number, since it is larger than the sum of its proper divisors (220124390).

422400442 is a wasteful number, since it uses less digits than its factorization.

422400442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2974724.

The product of its (nonzero) digits is 2048, while the sum is 22.

The square root of 422400442 is about 20552.3828788781. The cubic root of 422400442 is about 750.3112438555.

Adding to 422400442 its reverse (244004224), we get a palindrome (666404666).

The spelling of 422400442 in words is "four hundred twenty-two million, four hundred thousand, four hundred forty-two".