1442815 has 16 divisors (see below), whose sum is σ = 1942560. Its totient is φ = 1019520.

The previous prime is 1442797. The next prime is 1442827. The reversal of 1442815 is 5182441.

It is not a de Polignac number, because 1442815 - 2⁵ = 1442783 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1442815.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1681 + ... + 2389.

It is an arithmetic number, because the mean of its divisors is an integer number (121410).

2^1442815 is an apocalyptic number.

1442815 is a deficient number, since it is larger than the sum of its proper divisors (499745).

1442815 is a wasteful number, since it uses less digits than its factorization.

1442815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762.

The product of its digits is 1280, while the sum is 25.

The square root of 1442815 is about 1201.1723440040. The cubic root of 1442815 is about 112.9978593585.

The spelling of 1442815 in words is "one million, four hundred forty-two thousand, eight hundred fifteen".