4991824 has 20 divisors (see below), whose sum is σ = 9770580. Its totient is φ = 2470400.

The previous prime is 4991803. The next prime is 4991839. The reversal of 4991824 is 4281994.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4700224 + 291600 = 2168^2 + 540^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72 + ... + 3160.

It is an arithmetic number, because the mean of its divisors is an integer number (488529).

Almost surely, 2^4991824 is an apocalyptic number.

It is an amenable number.

4991824 is a deficient number, since it is larger than the sum of its proper divisors (4778756).

4991824 is a wasteful number, since it uses less digits than its factorization.

4991824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3198 (or 3192 counting only the distinct ones).

The product of its digits is 20736, while the sum is 37.

The square root of 4991824 is about 2234.2390203378. The cubic root of 4991824 is about 170.9043387295.

The spelling of 4991824 in words is "four million, nine hundred ninety-one thousand, eight hundred twenty-four".