4072724 has 24 divisors (see below), whose sum is σ = 7634088. Its totient is φ = 1894400.

The previous prime is 4072721. The next prime is 4072751. The reversal of 4072724 is 4272704.

4072724 is digitally balanced in base 5, 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 4 ways, for example, as 2464900 + 1607824 = 1570^2 + 1268^2 .

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 4072693 and 4072702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4072721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6572 + ... + 7164.

It is an arithmetic number, because the mean of its divisors is an integer number (318087).

Almost surely, 2^4072724 is an apocalyptic number.

It is an amenable number.

4072724 is a deficient number, since it is larger than the sum of its proper divisors (3561364).

4072724 is a wasteful number, since it uses less digits than its factorization.

4072724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715 (or 713 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 26.

The square root of 4072724 is about 2018.0991055942. The cubic root of 4072724 is about 159.6963511816.

The spelling of 4072724 in words is "four million, seventy-two thousand, seven hundred twenty-four".