1005254340 has 24 divisors (see below), whose sum is σ = 2814712320. Its totient is φ = 268067808.

The previous prime is 1005254333. The next prime is 1005254357. The reversal of 1005254340 is 434525001.

It is a self number, because there is not a number n which added to its sum of digits gives 1005254340.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8377060 + ... + 8377179.

It is an arithmetic number, because the mean of its divisors is an integer number (117279680).

Almost surely, 2^1005254340 is an apocalyptic number.

1005254340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1005254340 is an abundant number, since it is smaller than the sum of its proper divisors (1809457980).

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

1005254340 is a wasteful number, since it uses less digits than its factorization.

1005254340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16754251 (or 16754249 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 1005254340 is about 31705.7461669017. The cubic root of 1005254340 is about 1001.7483880245.

Adding to 1005254340 its reverse (434525001), we get a palindrome (1439779341).

The spelling of 1005254340 in words is "one billion, five million, two hundred fifty-four thousand, three hundred forty".