4638736 has 20 divisors (see below), whose sum is σ = 9461200. Its totient is φ = 2197152.

The previous prime is 4638721. The next prime is 4638737. The reversal of 4638736 is 6378364.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4638695 and 4638704.

It is not an unprimeable number, because it can be changed into a prime (4638737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7326 + ... + 7933.

It is an arithmetic number, because the mean of its divisors is an integer number (473060).

Almost surely, 2^4638736 is an apocalyptic number.

It is an amenable number.

4638736 is an abundant number, since it is smaller than the sum of its proper divisors (4822464).

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

4638736 is a wasteful number, since it uses less digits than its factorization.

4638736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15286 (or 15280 counting only the distinct ones).

The product of its digits is 72576, while the sum is 37.

The square root of 4638736 is about 2153.7725042353. The cubic root of 4638736 is about 166.7758715413.

The spelling of 4638736 in words is "four million, six hundred thirty-eight thousand, seven hundred thirty-six".