1000409975 has 12 divisors (see below), whose sum is σ = 1241018040. Its totient is φ = 799999200.

The previous prime is 1000409953. The next prime is 1000409981. The reversal of 1000409975 is 5799040001.

It is not a de Polignac number, because 1000409975 - 2⁶ = 1000409911 is a prime.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 67541 + ... + 81009.

It is an arithmetic number, because the mean of its divisors is an integer number (103418170).

Almost surely, 2^1000409975 is an apocalyptic number.

1000409975 is a deficient number, since it is larger than the sum of its proper divisors (240608065).

1000409975 is a wasteful number, since it uses less digits than its factorization.

1000409975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16450 (or 16445 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 1000409975 is about 31629.2582113460. The cubic root of 1000409975 is about 1000.1366396621.

Adding to 1000409975 its reverse (5799040001), we get a palindrome (6799449976).

The spelling of 1000409975 in words is "one billion, four hundred nine thousand, nine hundred seventy-five".