4631644 has 12 divisors (see below), whose sum is σ = 8177904. Its totient is φ = 2295104.

The previous prime is 4631639. The next prime is 4631651. The reversal of 4631644 is 4461364.

It is a happy number.

4631644 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×4631644² = 42904252285472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4672 + ... + 5575.

It is an arithmetic number, because the mean of its divisors is an integer number (681492).

Almost surely, 2^4631644 is an apocalyptic number.

It is an amenable number.

4631644 is a deficient number, since it is larger than the sum of its proper divisors (3546260).

4631644 is a wasteful number, since it uses less digits than its factorization.

4631644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10364 (or 10362 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The square root of 4631644 is about 2152.1254610268. The cubic root of 4631644 is about 166.6908356061.

It can be divided in two parts, 46316 and 44, that added together give a triangular number (46360 = T₃₀₄).

The spelling of 4631644 in words is "four million, six hundred thirty-one thousand, six hundred forty-four".