1004378008 has 16 divisors (see below), whose sum is σ = 1895850000. Its totient is φ = 498818016.

The previous prime is 1004377973. The next prime is 1004378009. The reversal of 1004378008 is 8008734001.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1004378009) 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 3 ways as a sum of consecutive naturals, for example, 420108 + ... + 422491.

It is an arithmetic number, because the mean of its divisors is an integer number (118490625).

Almost surely, 2^1004378008 is an apocalyptic number.

It is an amenable number.

1004378008 is a deficient number, since it is larger than the sum of its proper divisors (891471992).

1004378008 is a wasteful number, since it uses less digits than its factorization.

1004378008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842754 (or 842750 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 1004378008 is about 31691.9233875131. The cubic root of 1004378008 is about 1001.4572115032.

The spelling of 1004378008 in words is "one billion, four million, three hundred seventy-eight thousand, eight".