4120724 has 6 divisors (see below), whose sum is σ = 7211274. Its totient is φ = 2060360.

The previous prime is 4120723. The next prime is 4120729. The reversal of 4120724 is 4270214.

4120724 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 4072324 + 48400 = 2018^2 + 220^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4120696 and 4120705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4120723) 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 as a sum of consecutive naturals, namely, 515087 + ... + 515094.

It is an arithmetic number, because the mean of its divisors is an integer number (1201879).

Almost surely, 2^4120724 is an apocalyptic number.

It is an amenable number.

4120724 is a deficient number, since it is larger than the sum of its proper divisors (3090550).

4120724 is a wasteful number, since it uses less digits than its factorization.

4120724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030185 (or 1030183 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 4120724 is about 2029.9566497834. The cubic root of 4120724 is about 160.3212815152.

Adding to 4120724 its reverse (4270214), we get a palindrome (8390938).

The spelling of 4120724 in words is "four million, one hundred twenty thousand, seven hundred twenty-four".