1004445258 has 16 divisors (see below), whose sum is σ = 2009236320. Its totient is φ = 334757456.

The previous prime is 1004445257. The next prime is 1004445269. The reversal of 1004445258 is 8525444001.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1004445257) by changing a digit.

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, 38041 + ... + 58787.

It is an arithmetic number, because the mean of its divisors is an integer number (125577270).

Almost surely, 2^1004445258 is an apocalyptic number.

1004445258 is an abundant number, since it is smaller than the sum of its proper divisors (1004791062).

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

1004445258 is a wasteful number, since it uses less digits than its factorization.

1004445258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28821.

The product of its (nonzero) digits is 25600, while the sum is 33.

The square root of 1004445258 is about 31692.9843656289. The cubic root of 1004445258 is about 1001.4795624819.

Adding to 1004445258 its reverse (8525444001), we get a palindrome (9529889259).

The spelling of 1004445258 in words is "one billion, four million, four hundred forty-five thousand, two hundred fifty-eight".