4006624 has 12 divisors (see below), whose sum is σ = 7888104. Its totient is φ = 2003296.

The previous prime is 4006621. The next prime is 4006633. The reversal of 4006624 is 4266004.

It is a junction number, because it is equal to n+sod(n) for n = 4006595 and 4006604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4006621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62572 + ... + 62635.

It is an arithmetic number, because the mean of its divisors is an integer number (657342).

Almost surely, 2^4006624 is an apocalyptic number.

It is an amenable number.

4006624 is a deficient number, since it is larger than the sum of its proper divisors (3881480).

4006624 is a wasteful number, since it uses less digits than its factorization.

4006624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125217 (or 125209 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 4006624 is about 2001.6553149831. The cubic root of 4006624 is about 158.8276814106.

The spelling of 4006624 in words is "four million, six thousand, six hundred twenty-four".