4003600401 has 12 divisors (see below), whose sum is σ = 5786100112. Its totient is φ = 2667626136.

The previous prime is 4003600399. The next prime is 4003600439. The reversal of 4003600401 is 1040063004.

It is not a de Polignac number, because 4003600401 - 2¹ = 4003600399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4003600301) 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, 102331 + ... + 135936.

Almost surely, 2^4003600401 is an apocalyptic number.

It is an amenable number.

4003600401 is a deficient number, since it is larger than the sum of its proper divisors (1782499711).

4003600401 is a wasteful number, since it uses less digits than its factorization.

4003600401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240140 (or 240137 counting only the distinct ones).

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

The square root of 4003600401 is about 63274.0104703345. The cubic root of 4003600401 is about 1587.8771825029.

Adding to 4003600401 its reverse (1040063004), we get a palindrome (5043663405).

It can be divided in two parts, 4003600 and 401, that added together give a square (4004001 = 2001²).

The spelling of 4003600401 in words is "four billion, three million, six hundred thousand, four hundred one".