1005242 has 16 divisors (see below), whose sum is σ = 1753920. Its totient is φ = 423168.

The previous prime is 1005241. The next prime is 1005269. The reversal of 1005242 is 2425001.

It is a super-2 number, since 2×1005242² = 2021022957128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (1005241) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 218 + ... + 1434.

It is an arithmetic number, because the mean of its divisors is an integer number (109620).

2^1005242 is an apocalyptic number.

1005242 is a deficient number, since it is larger than the sum of its proper divisors (748678).

1005242 is a wasteful number, since it uses less digits than its factorization.

1005242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 1005242 is about 1002.6175741528. The cubic root of 1005242 is about 100.1744289020.

The spelling of 1005242 in words is "one million, five thousand, two hundred forty-two".