1422450 has 72 divisors (see below), whose sum is σ = 3989700. Its totient is φ = 362880.

The previous prime is 1422439. The next prime is 1422461. The reversal of 1422450 is 542241.

It is an interprime number because it is at equal distance from previous prime (1422439) and next prime (1422461).

It can be written as a sum of positive squares in 6 ways, for example, as 670761 + 751689 = 819^2 + 867^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 35 ways as a sum of consecutive naturals, for example, 12996 + ... + 13104.

2^1422450 is an apocalyptic number.

1422450 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 1422450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1994850).

1422450 is an abundant number, since it is smaller than the sum of its proper divisors (2567250).

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

1422450 is a wasteful number, since it uses less digits than its factorization.

1422450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156 (or 148 counting only the distinct ones).

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

The square root of 1422450 is about 1192.6650829131. The cubic root of 1422450 is about 112.4636919870.

Adding to 1422450 its reverse (542241), we get a palindrome (1964691).

The spelling of 1422450 in words is "one million, four hundred twenty-two thousand, four hundred fifty".