9004945812 has 24 divisors (see below), whose sum is σ = 21023335200. Its totient is φ = 2999963616.

The previous prime is 9004945769. The next prime is 9004945841. The reversal of 9004945812 is 2185494009.

It is a congruent number.

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, 188262 + ... + 231197.

It is an arithmetic number, because the mean of its divisors is an integer number (875972300).

Almost surely, 2^9004945812 is an apocalyptic number.

It is an amenable number.

9004945812 is an abundant number, since it is smaller than the sum of its proper divisors (12018389388).

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

9004945812 is a wasteful number, since it uses less digits than its factorization.

9004945812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421255 (or 421253 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 9004945812 is about 94894.3929428920. The cubic root of 9004945812 is about 2080.4647793343.

The spelling of 9004945812 in words is "nine billion, four million, nine hundred forty-five thousand, eight hundred twelve".