1442668 has 12 divisors (see below), whose sum is σ = 2567880. Its totient is φ = 708992.

The previous prime is 1442657. The next prime is 1442669. The reversal of 1442668 is 8662441.

It is not an unprimeable number, because it can be changed into a prime (1442669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2821 + ... + 3292.

It is an arithmetic number, because the mean of its divisors is an integer number (213990).

2^1442668 is an apocalyptic number.

It is an amenable number.

1442668 is a deficient number, since it is larger than the sum of its proper divisors (1125212).

1442668 is a wasteful number, since it uses less digits than its factorization.

1442668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6176 (or 6174 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 1442668 is about 1201.1111522253. Note that the first 4 decimals coincide. The cubic root of 1442668 is about 112.9940216640.

The spelling of 1442668 in words is "one million, four hundred forty-two thousand, six hundred sixty-eight".