4001043312 has 60 divisors (see below), whose sum is σ = 12796990960. Its totient is φ = 1143154944.

The previous prime is 4001043289. The next prime is 4001043329. The reversal of 4001043312 is 2133401004.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1983637 + ... + 1985652.

Almost surely, 2^4001043312 is an apocalyptic number.

4001043312 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

4001043312 is an abundant number, since it is smaller than the sum of its proper divisors (8795947648).

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

4001043312 is a wasteful number, since it uses less digits than its factorization.

4001043312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3969310 (or 3969301 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 4001043312 is about 63253.8007711790. The cubic root of 4001043312 is about 1587.5390528513.

Adding to 4001043312 its reverse (2133401004), we get a palindrome (6134444316).

The spelling of 4001043312 in words is "four billion, one million, forty-three thousand, three hundred twelve".