4001321332 has 6 divisors (see below), whose sum is σ = 7002312338. Its totient is φ = 2000660664.

The previous prime is 4001321329. The next prime is 4001321341. The reversal of 4001321332 is 2331231004.

It can be written as a sum of positive squares in only one way, i.e., 3299813136 + 701508196 = 57444^2 + 26486^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500165163 + ... + 500165170.

Almost surely, 2^4001321332 is an apocalyptic number.

It is an amenable number.

4001321332 is a deficient number, since it is larger than the sum of its proper divisors (3000991006).

4001321332 is a wasteful number, since it uses less digits than its factorization.

4001321332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000330337 (or 1000330335 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 4001321332 is about 63255.9983875047. The cubic root of 4001321332 is about 1587.5758230426.

Adding to 4001321332 its reverse (2331231004), we get a palindrome (6332552336).

The spelling of 4001321332 in words is "four billion, one million, three hundred twenty-one thousand, three hundred thirty-two".