1442287 has 8 divisors (see below), whose sum is σ = 1798272. Its totient is φ = 1123800.

The previous prime is 1442279. The next prime is 1442299. The reversal of 1442287 is 7822441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1442287 - 2³ = 1442279 is a prime.

It is a congruent number.

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

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 7 ways as a sum of consecutive naturals, for example, 9289 + ... + 9442.

It is an arithmetic number, because the mean of its divisors is an integer number (224784).

2^1442287 is an apocalyptic number.

1442287 is a deficient number, since it is larger than the sum of its proper divisors (355985).

1442287 is a wasteful number, since it uses less digits than its factorization.

1442287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18749.

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

The square root of 1442287 is about 1200.9525386126. The cubic root of 1442287 is about 112.9840737729.

The spelling of 1442287 in words is "one million, four hundred forty-two thousand, two hundred eighty-seven".