1005412004 has 24 divisors (see below), whose sum is σ = 1831950456. Its totient is φ = 482400000.

The previous prime is 1005412003. The next prime is 1005412007. The reversal of 1005412004 is 4002145001.

It can be written as a sum of positive squares in 4 ways, for example, as 138109504 + 867302500 = 11752^2 + 29450^2 .

It is not an unprimeable number, because it can be changed into a prime (1005412003) 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, 40247 + ... + 60254.

It is an arithmetic number, because the mean of its divisors is an integer number (76331269).

Almost surely, 2^1005412004 is an apocalyptic number.

It is an amenable number.

1005412004 is a deficient number, since it is larger than the sum of its proper divisors (826538452).

1005412004 is a wasteful number, since it uses less digits than its factorization.

1005412004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100607 (or 100605 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 1005412004 is about 31708.2324326034. The cubic root of 1005412004 is about 1001.8007566623.

Adding to 1005412004 its reverse (4002145001), we get a palindrome (5007557005).

The spelling of 1005412004 in words is "one billion, five million, four hundred twelve thousand, four".