422400423 has 16 divisors (see below), whose sum is σ = 566818560. Its totient is φ = 279798144.

The previous prime is 422400413. The next prime is 422400431. The reversal of 422400423 is 324004224.

It is not a de Polignac number, because 422400423 - 2⁹ = 422399911 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 422400423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422400403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 503038 + ... + 503876.

It is an arithmetic number, because the mean of its divisors is an integer number (35426160).

Almost surely, 2^422400423 is an apocalyptic number.

422400423 is a deficient number, since it is larger than the sum of its proper divisors (144418137).

422400423 is a wasteful number, since it uses less digits than its factorization.

422400423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1718.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 422400423 is about 20552.3824166445. The cubic root of 422400423 is about 750.3112326056.

Adding to 422400423 its reverse (324004224), we get a palindrome (746404647).

The spelling of 422400423 in words is "four hundred twenty-two million, four hundred thousand, four hundred twenty-three".