1422224000 has 128 divisors (see below), whose sum is σ = 3574471680. Its totient is φ = 562713600.

The previous prime is 1422223997. The next prime is 1422224017. The reversal of 1422224000 is 4222241.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×1422224000² = 4045442212352000000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1422224000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1647569 + ... + 1648431.

It is an arithmetic number, because the mean of its divisors is an integer number (27925560).

Almost surely, 2^1422224000 is an apocalyptic number.

1422224000 is a gapful number since it is divisible by the number (10) 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 1422224000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1787235840).

1422224000 is an abundant number, since it is smaller than the sum of its proper divisors (2152247680).

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

1422224000 is an equidigital number, since it uses as much as digits as its factorization.

1422224000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995 (or 973 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 1422224000 is about 37712.3852335012. The cubic root of 1422224000 is about 1124.5773556425.

Adding to 1422224000 its reverse (4222241), we get a palindrome (1426446241).

The spelling of 1422224000 in words is "one billion, four hundred twenty-two million, two hundred twenty-four thousand".