1422500 has 30 divisors (see below), whose sum is σ = 3116190. Its totient is φ = 568000.

The previous prime is 1422493. The next prime is 1422521. The reversal of 1422500 is 52241.

It can be written as a sum of positive squares in 5 ways, for example, as 817216 + 605284 = 904^2 + 778^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2216 + ... + 2784.

It is an arithmetic number, because the mean of its divisors is an integer number (103873).

2^1422500 is an apocalyptic number.

1422500 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 1422500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1558095).

1422500 is an abundant number, since it is smaller than the sum of its proper divisors (1693690).

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

1422500 is an equidigital number, since it uses as much as digits as its factorization.

1422500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593 (or 576 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 1422500 is about 1192.6860441877. The cubic root of 1422500 is about 112.4650096944.

Adding to 1422500 its reverse (52241), we get a palindrome (1474741).

The spelling of 1422500 in words is "one million, four hundred twenty-two thousand, five hundred".