1000043808 has 48 divisors (see below), whose sum is σ = 2626880256. Its totient is φ = 333123840.

The previous prime is 1000043773. The next prime is 1000043813. The reversal of 1000043808 is 8083400001.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203298 + ... + 208158.

It is an arithmetic number, because the mean of its divisors is an integer number (54726672).

Almost surely, 2^1000043808 is an apocalyptic number.

It is an amenable number.

1000043808 is an abundant number, since it is smaller than the sum of its proper divisors (1626836448).

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

1000043808 is a wasteful number, since it uses less digits than its factorization.

1000043808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7017 (or 7009 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 1000043808 is about 31623.4692593966. The cubic root of 1000043808 is about 1000.0146024534.

Adding to 1000043808 its reverse (8083400001), we get a palindrome (9083443809).

The spelling of 1000043808 in words is "one billion, forty-three thousand, eight hundred eight".