4001045312 has 28 divisors (see below), whose sum is σ = 8661355296. Its totient is φ = 1818656640.

The previous prime is 4001045249. The next prime is 4001045369. The reversal of 4001045312 is 2135401004.

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 3 ways as a sum of consecutive naturals, for example, 2840948 + ... + 2842355.

Almost surely, 2^4001045312 is an apocalyptic number.

It is an amenable number.

4001045312 is an abundant number, since it is smaller than the sum of its proper divisors (4660309984).

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

4001045312 is a wasteful number, since it uses less digits than its factorization.

4001045312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5683326 (or 5683316 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 4001045312 is about 63253.8165805037. The cubic root of 4001045312 is about 1587.5393173721.

Adding to 4001045312 its reverse (2135401004), we get a palindrome (6136446316).

The spelling of 4001045312 in words is "four billion, one million, forty-five thousand, three hundred twelve".