1942225 has 6 divisors (see below), whose sum is σ = 2408390. Its totient is φ = 1553760.

The previous prime is 1942207. The next prime is 1942273. The reversal of 1942225 is 5222491.

It can be written as a sum of positive squares in 3 ways, for example, as 231361 + 1710864 = 481^2 + 1308^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1942225 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 77689 = 1942225 / (1 + 9 + 4 + 2 + 2 + 2 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 1942225.

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 5 ways as a sum of consecutive naturals, for example, 38820 + ... + 38869.

2^1942225 is an apocalyptic number.

It is an amenable number.

1942225 is a deficient number, since it is larger than the sum of its proper divisors (466165).

1942225 is an equidigital number, since it uses as much as digits as its factorization.

1942225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77699 (or 77694 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 1942225 is about 1393.6373272843. The cubic root of 1942225 is about 124.7670327465.

The spelling of 1942225 in words is "one million, nine hundred forty-two thousand, two hundred twenty-five".