3643624401 has 16 divisors (see below), whose sum is σ = 5021872128. Its totient is φ = 2347448400.

The previous prime is 3643624379. The next prime is 3643624451. The reversal of 3643624401 is 1044263463.

It is not a de Polignac number, because 3643624401 - 2⁷ = 3643624273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3643624451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40666 + ... + 94556.

It is an arithmetic number, because the mean of its divisors is an integer number (313867008).

Almost surely, 2^3643624401 is an apocalyptic number.

3643624401 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3643624401 is a deficient number, since it is larger than the sum of its proper divisors (1378247727).

3643624401 is a wasteful number, since it uses less digits than its factorization.

3643624401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54652.

The product of its (nonzero) digits is 41472, while the sum is 33.

The square root of 3643624401 is about 60362.4419734656. The cubic root of 3643624401 is about 1538.7847275505.

Adding to 3643624401 its reverse (1044263463), we get a palindrome (4687887864).

The spelling of 3643624401 in words is "three billion, six hundred forty-three million, six hundred twenty-four thousand, four hundred one".