1422002250 has 128 divisors (see below), whose sum is σ = 3962649600. Its totient is φ = 377380800.

The previous prime is 1422002227. The next prime is 1422002251. The reversal of 1422002250 is 522002241.

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 (1422002251) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1977391 + ... + 1978109.

It is an arithmetic number, because the mean of its divisors is an integer number (30958200).

Almost surely, 2^1422002250 is an apocalyptic number.

1422002250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1422002250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1981324800).

1422002250 is an abundant number, since it is smaller than the sum of its proper divisors (2540647350).

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

1422002250 is a wasteful number, since it uses less digits than its factorization.

1422002250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038 (or 1022 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 1422002250 is about 37709.4451033160. The cubic root of 1422002250 is about 1124.5189054053.

Adding to 1422002250 its reverse (522002241), we get a palindrome (1944004491).

Subtracting from 1422002250 its reverse (522002241), we obtain a palindrome (900000009).

The spelling of 1422002250 in words is "one billion, four hundred twenty-two million, two thousand, two hundred fifty".