1008042243 has 12 divisors (see below), whose sum is σ = 1455399000. Its totient is φ = 620333376.

The previous prime is 1008042241. The next prime is 1008042253. The reversal of 1008042243 is 3422408001.

It is not a de Polignac number, because 1008042243 - 2¹ = 1008042241 is a prime.

It is a super-2 number, since 2×1008042243² = 2032298327344942098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1008042241) 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, 993618 + ... + 994631.

It is an arithmetic number, because the mean of its divisors is an integer number (121283250).

Almost surely, 2^1008042243 is an apocalyptic number.

1008042243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1008042243 is a deficient number, since it is larger than the sum of its proper divisors (447356757).

1008042243 is a wasteful number, since it uses less digits than its factorization.

1008042243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988278 (or 1988265 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 1008042243 is about 31749.6809905234. The cubic root of 1008042243 is about 1002.6735931957.

The spelling of 1008042243 in words is "one billion, eight million, forty-two thousand, two hundred forty-three".