422400501200 has 30 divisors (see below), whose sum is σ = 1014817205094. Its totient is φ = 168960200320.

The previous prime is 422400501161. The next prime is 422400501221. The reversal of 422400501200 is 2105004224.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 109579536784 + 312820964416 = 331028^2 + 559304^2 .

It is a super-2 number, since 2×422400501200² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 528000227 + ... + 528001026.

Almost surely, 2^422400501200 is an apocalyptic number.

422400501200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422400501200 is an abundant number, since it is smaller than the sum of its proper divisors (592416703894).

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

422400501200 is a wasteful number, since it uses less digits than its factorization.

422400501200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056001271 (or 1056001260 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 422400501200 its reverse (2105004224), we get a palindrome (424505505424).

The spelling of 422400501200 in words is "four hundred twenty-two billion, four hundred million, five hundred one thousand, two hundred".