4003320401 has 4 divisors (see below), whose sum is σ = 4100962404. Its totient is φ = 3905678400.

The previous prime is 4003320397. The next prime is 4003320427. The reversal of 4003320401 is 1040233004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 411116176 + 3592204225 = 20276^2 + 59935^2 .

It is a cyclic number.

It is not a de Polignac number, because 4003320401 - 2² = 4003320397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4003320401.

It is not an unprimeable number, because it can be changed into a prime (4003320001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48820940 + ... + 48821021.

It is an arithmetic number, because the mean of its divisors is an integer number (1025240601).

Almost surely, 2^4003320401 is an apocalyptic number.

4003320401 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4003320401 is a deficient number, since it is larger than the sum of its proper divisors (97642003).

4003320401 is an equidigital number, since it uses as much as digits as its factorization.

4003320401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97642002.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 4003320401 is about 63271.7978328418. The cubic root of 4003320401 is about 1587.8401644915.

Adding to 4003320401 its reverse (1040233004), we get a palindrome (5043553405).

The spelling of 4003320401 in words is "four billion, three million, three hundred twenty thousand, four hundred one".