1442278 has 4 divisors (see below), whose sum is σ = 2163420. Its totient is φ = 721138.

The previous prime is 1442267. The next prime is 1442279. The reversal of 1442278 is 8722441.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360568 + ... + 360571.

It is an arithmetic number, because the mean of its divisors is an integer number (540855).

2^1442278 is an apocalyptic number.

1442278 is a deficient number, since it is larger than the sum of its proper divisors (721142).

1442278 is an equidigital number, since it uses as much as digits as its factorization.

1442278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721141.

The product of its digits is 3584, while the sum is 28.

The square root of 1442278 is about 1200.9487915811. The cubic root of 1442278 is about 112.9838387622.

The spelling of 1442278 in words is "one million, four hundred forty-two thousand, two hundred seventy-eight".