4636220631 has 16 divisors (see below), whose sum is σ = 7081046784. Its totient is φ = 2643145344.

The previous prime is 4636220627. The next prime is 4636220669. The reversal of 4636220631 is 1360226364.

It is not a de Polignac number, because 4636220631 - 2² = 4636220627 is a prime.

It is a super-2 number, since 2×4636220631² = 42989083478620076322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4636220592 and 4636220601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4636220131) 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, 245841 + ... + 264026.

It is an arithmetic number, because the mean of its divisors is an integer number (442565424).

Almost surely, 2^4636220631 is an apocalyptic number.

4636220631 is a deficient number, since it is larger than the sum of its proper divisors (2444826153).

4636220631 is a wasteful number, since it uses less digits than its factorization.

4636220631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510310.

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 4636220631 is about 68089.7982887304. The cubic root of 4636220631 is about 1667.4572117949.

Adding to 4636220631 its reverse (1360226364), we get a palindrome (5996446995).

The spelling of 4636220631 in words is "four billion, six hundred thirty-six million, two hundred twenty thousand, six hundred thirty-one".