1005243434 has 48 divisors (see below), whose sum is σ = 1673141184. Its totient is φ = 452649600.

The previous prime is 1005243433. The next prime is 1005243509. The reversal of 1005243434 is 4343425001.

It is a super-2 number, since 2×1005243434² = 2021028723200224712, which contains 22 as substring.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (1005243433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3232139 + ... + 3232449.

It is an arithmetic number, because the mean of its divisors is an integer number (34857108).

Almost surely, 2^1005243434 is an apocalyptic number.

1005243434 is a deficient number, since it is larger than the sum of its proper divisors (667897750).

1005243434 is a wasteful number, since it uses less digits than its factorization.

1005243434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543 (or 530 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 1005243434 is about 31705.5741786835. The cubic root of 1005243434 is about 1001.7447653567.

Adding to 1005243434 its reverse (4343425001), we get a palindrome (5348668435).

The spelling of 1005243434 in words is "one billion, five million, two hundred forty-three thousand, four hundred thirty-four".