1442225 has 6 divisors (see below), whose sum is σ = 1788390. Its totient is φ = 1153760.

The previous prime is 1442209. The next prime is 1442227. The reversal of 1442225 is 5222441.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 4624 + 1437601 = 68^2 + 1199^2 .

It is not a de Polignac number, because 1442225 - 2⁴ = 1442209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1442197 and 1442206.

It is not an unprimeable number, because it can be changed into a prime (1442227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28820 + ... + 28869.

It is an arithmetic number, because the mean of its divisors is an integer number (298065).

2^1442225 is an apocalyptic number.

It is an amenable number.

1442225 is a deficient number, since it is larger than the sum of its proper divisors (346165).

1442225 is an equidigital number, since it uses as much as digits as its factorization.

1442225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57699 (or 57694 counting only the distinct ones).

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

The square root of 1442225 is about 1200.9267254916. The cubic root of 1442225 is about 112.9824547902.

Adding to 1442225 its reverse (5222441), we get a palindrome (6664666).

It can be divided in two parts, 144 and 2225, that multiplied together give a triangular number (320400 = T₈₀₀).

The spelling of 1442225 in words is "one million, four hundred forty-two thousand, two hundred twenty-five".