1005342250 has 128 divisors (see below), whose sum is σ = 2199674880. Its totient is φ = 340200000.

The previous prime is 1005342199. The next prime is 1005342253. The reversal of 1005342250 is 522435001.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (1005342253) 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 63 ways as a sum of consecutive naturals, for example, 3709615 + ... + 3709885.

It is an arithmetic number, because the mean of its divisors is an integer number (17184960).

Almost surely, 2^1005342250 is an apocalyptic number.

1005342250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1005342250 is an abundant number, since it is smaller than the sum of its proper divisors (1194332630).

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

1005342250 is a wasteful number, since it uses less digits than its factorization.

1005342250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 1005342250 is about 31707.1324783557. The cubic root of 1005342250 is about 1001.7775883075. Note that the first 3 decimals are identical.

Adding to 1005342250 its reverse (522435001), we get a palindrome (1527777251).

The spelling of 1005342250 in words is "one billion, five million, three hundred forty-two thousand, two hundred fifty".