4001403312 has 60 divisors (see below), whose sum is σ = 11351803944. Its totient is φ = 1315526400.

The previous prime is 4001403293. The next prime is 4001403319. The reversal of 4001403312 is 2133041004.

It is a super-2 number, since 2×4001403312² = 32022456930569138688, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (4001403319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 179814 + ... + 200837.

Almost surely, 2^4001403312 is an apocalyptic number.

It is an amenable number.

4001403312 is an abundant number, since it is smaller than the sum of its proper divisors (7350400632).

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

4001403312 is a wasteful number, since it uses less digits than its factorization.

4001403312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380738 (or 380729 counting only the distinct ones).

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

The square root of 4001403312 is about 63256.6463859728. The cubic root of 4001403312 is about 1587.5866651759.

Adding to 4001403312 its reverse (2133041004), we get a palindrome (6134444316).

The spelling of 4001403312 in words is "four billion, one million, four hundred three thousand, three hundred twelve".