422440200 has 288 divisors, whose sum is σ = 1746763200. Its totient is φ = 89095680.

The previous prime is 422440199. The next prime is 422440201. The reversal of 422440200 is 2044224.

422440200 is a `hidden beast` number, since 4 + 22 + 440 + 200 = 666.

It is an interprime number because it is at equal distance from previous prime (422440199) and next prime (422440201).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (422440201) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 162511 + ... + 165089.

It is an arithmetic number, because the mean of its divisors is an integer number (6065150).

Almost surely, 2^422440200 is an apocalyptic number.

422440200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422440200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (873381600).

422440200 is an abundant number, since it is smaller than the sum of its proper divisors (1324323000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422440200 is a wasteful number, since it uses less digits than its factorization.

422440200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2621 (or 2609 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 422440200 is about 20553.3500918950. The cubic root of 422440200 is about 750.3347838708.

Adding to 422440200 its reverse (2044224), we get a palindrome (424484424).

The spelling of 422440200 in words is "four hundred twenty-two million, four hundred forty thousand, two hundred".