1005034905 has 32 divisors (see below), whose sum is σ = 2041977600. Its totient is φ = 459444096.

The previous prime is 1005034897. The next prime is 1005034931. The reversal of 1005034905 is 5094305001.

It is not a de Polignac number, because 1005034905 - 2³ = 1005034897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 530820 + ... + 532709.

It is an arithmetic number, because the mean of its divisors is an integer number (63811800).

Almost surely, 2^1005034905 is an apocalyptic number.

1005034905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1005034905 is an abundant number, since it is smaller than the sum of its proper divisors (1036942695).

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

1005034905 is a wasteful number, since it uses less digits than its factorization.

1005034905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063550 (or 1063544 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 1005034905 is about 31702.2854854346. The cubic root of 1005034905 is about 1001.6754928226.

Adding to 1005034905 its reverse (5094305001), we get a palindrome (6099339906).

The spelling of 1005034905 in words is "one billion, five million, thirty-four thousand, nine hundred five".