1422250400 has 72 divisors (see below), whose sum is σ = 3565982700. Its totient is φ = 553512960.

The previous prime is 1422250391. The next prime is 1422250411. The reversal of 1422250400 is 40522241.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 476810896 + 945439504 = 21836^2 + 30748^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5576 + ... + 53624.

Almost surely, 2^1422250400 is an apocalyptic number.

1422250400 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 1422250400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1782991350).

1422250400 is an abundant number, since it is smaller than the sum of its proper divisors (2143732300).

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

1422250400 is a wasteful number, since it uses less digits than its factorization.

1422250400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48106 (or 48093 counting only the distinct ones).

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

The square root of 1422250400 is about 37712.7352495149. The cubic root of 1422250400 is about 1124.5843139131.

Adding to 1422250400 its reverse (40522241), we get a palindrome (1462772641).

The spelling of 1422250400 in words is "one billion, four hundred twenty-two million, two hundred fifty thousand, four hundred".