1002042 has 24 divisors (see below), whose sum is σ = 2190240. Its totient is φ = 331080.

The previous prime is 1002017. The next prime is 1002049. The reversal of 1002042 is 2402001.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1002049) 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 11 ways as a sum of consecutive naturals, for example, 3067 + ... + 3377.

It is an arithmetic number, because the mean of its divisors is an integer number (91260).

2^1002042 is an apocalyptic number.

1002042 is an abundant number, since it is smaller than the sum of its proper divisors (1188198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1002042 is a wasteful number, since it uses less digits than its factorization.

1002042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498 (or 495 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 1002042 is about 1001.0204793110. The cubic root of 1002042 is about 100.0680203884.

Adding to 1002042 its reverse (2402001), we get a palindrome (3404043).

The spelling of 1002042 in words is "one million, two thousand, forty-two".