4047724 has 12 divisors (see below), whose sum is σ = 7391664. Its totient is φ = 1935824.

The previous prime is 4047721. The next prime is 4047737. The reversal of 4047724 is 4277404.

It is a junction number, because it is equal to n+sod(n) for n = 4047692 and 4047701.

It is not an unprimeable number, because it can be changed into a prime (4047721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21907 + ... + 22090.

It is an arithmetic number, because the mean of its divisors is an integer number (615972).

Almost surely, 2^4047724 is an apocalyptic number.

It is an amenable number.

4047724 is a deficient number, since it is larger than the sum of its proper divisors (3343940).

4047724 is a wasteful number, since it uses less digits than its factorization.

4047724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44024 (or 44022 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 28.

The square root of 4047724 is about 2011.8956235352. The cubic root of 4047724 is about 159.3689203884.

It can be divided in two parts, 404 and 7724, that added together give a triangular number (8128 = T₁₂₇).

The spelling of 4047724 in words is "four million, forty-seven thousand, seven hundred twenty-four".