1142668 has 6 divisors (see below), whose sum is σ = 1999676. Its totient is φ = 571332.

The previous prime is 1142651. The next prime is 1142677. The reversal of 1142668 is 8662411.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 142830 + ... + 142837.

2^1142668 is an apocalyptic number.

It is an amenable number.

1142668 is a deficient number, since it is larger than the sum of its proper divisors (857008).

1142668 is a wasteful number, since it uses less digits than its factorization.

1142668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285671 (or 285669 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 1142668 is about 1068.9565005181. The cubic root of 1142668 is about 104.5458236339.

The spelling of 1142668 in words is "one million, one hundred forty-two thousand, six hundred sixty-eight".