1422003600 has 150 divisors (see below), whose sum is σ = 5103573090. Its totient is φ = 379192320.

The previous prime is 1422003553. The next prime is 1422003601. The reversal of 1422003600 is 63002241.

It is a happy number.

1422003600 is a `hidden beast` number, since 1 + 42 + 20 + 0 + 3 + 600 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 355850496 + 1066153104 = 18864^2 + 32652^2 .

It is a tau number, because it is divible by the number of its divisors (150).

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 (1422003601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 10456 + ... + 54344.

Almost surely, 2^1422003600 is an apocalyptic number.

1422003600 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 1422003600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2551786545).

1422003600 is an abundant number, since it is smaller than the sum of its proper divisors (3681569490).

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

1422003600 is a wasteful number, since it uses less digits than its factorization.

1422003600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43919 (or 43899 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1422003600 is about 37709.4630033364. The cubic root of 1422003600 is about 1124.5192612651.

Adding to 1422003600 its reverse (63002241), we get a palindrome (1485005841).

The spelling of 1422003600 in words is "one billion, four hundred twenty-two million, three thousand, six hundred".