1002842 has 8 divisors (see below), whose sum is σ = 1509300. Its totient is φ = 499744.

The previous prime is 1002821. The next prime is 1002851. The reversal of 1002842 is 2482001.

It can be written as a sum of positive squares in 2 ways, for example, as 1002001 + 841 = 1001^2 + 29^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 1002842.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134 + ... + 1422.

2^1002842 is an apocalyptic number.

1002842 is a deficient number, since it is larger than the sum of its proper divisors (506458).

1002842 is a wasteful number, since it uses less digits than its factorization.

1002842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1002842 is about 1001.4199918116. The cubic root of 1002842 is about 100.0946437307.

Adding to 1002842 its reverse (2482001), we get a palindrome (3484843).

The spelling of 1002842 in words is "one million, two thousand, eight hundred forty-two".