4020724 has 12 divisors (see below), whose sum is σ = 7056000. Its totient is φ = 2004728.

The previous prime is 4020719. The next prime is 4020727. The reversal of 4020724 is 4270204.

4020724 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477 + ... + 2875.

It is an arithmetic number, because the mean of its divisors is an integer number (588000).

Almost surely, 2^4020724 is an apocalyptic number.

It is an amenable number.

4020724 is a deficient number, since it is larger than the sum of its proper divisors (3035276).

4020724 is a wasteful number, since it uses less digits than its factorization.

4020724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2822 (or 2820 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 4020724 is about 2005.1743066377. The cubic root of 4020724 is about 159.0137772696.

Adding to 4020724 its reverse (4270204), we get a palindrome (8290928).

The spelling of 4020724 in words is "four million, twenty thousand, seven hundred twenty-four".