4001802816 has 56 divisors (see below), whose sum is σ = 11550664224. Its totient is φ = 1212666880.

The previous prime is 4001802793. The next prime is 4001802863. The reversal of 4001802816 is 6182081004.

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, 945285 + ... + 949508.

Almost surely, 2^4001802816 is an apocalyptic number.

It is an amenable number.

4001802816 is an abundant number, since it is smaller than the sum of its proper divisors (7548861408).

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

4001802816 is a wasteful number, since it uses less digits than its factorization.

4001802816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1894819 (or 1894809 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 4001802816 is about 63259.8041097188. The cubic root of 4001802816 is about 1587.6394988167.

The spelling of 4001802816 in words is "four billion, one million, eight hundred two thousand, eight hundred sixteen".