4644136 has 32 divisors (see below), whose sum is σ = 10045440. Its totient is φ = 1971648.

The previous prime is 4644131. The next prime is 4644139. The reversal of 4644136 is 6314464.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (4644131) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6786 + ... + 7438.

It is an arithmetic number, because the mean of its divisors is an integer number (313920).

Almost surely, 2^4644136 is an apocalyptic number.

It is an amenable number.

4644136 is an abundant number, since it is smaller than the sum of its proper divisors (5401304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4644136 is a wasteful number, since it uses less digits than its factorization.

4644136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793 (or 789 counting only the distinct ones).

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

The square root of 4644136 is about 2155.0257539064. The cubic root of 4644136 is about 166.8405616113.

The spelling of 4644136 in words is "four million, six hundred forty-four thousand, one hundred thirty-six".