4640038 has 16 divisors (see below), whose sum is σ = 7544880. Its totient is φ = 2127456.

The previous prime is 4640017. The next prime is 4640057. The reversal of 4640038 is 8300464.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4639994 and 4640021.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 4156 + ... + 5152.

It is an arithmetic number, because the mean of its divisors is an integer number (471555).

Almost surely, 2^4640038 is an apocalyptic number.

4640038 is a deficient number, since it is larger than the sum of its proper divisors (2904842).

4640038 is a wasteful number, since it uses less digits than its factorization.

4640038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 4640038 is about 2154.0747433643. The cubic root of 4640038 is about 166.7914736271.

The spelling of 4640038 in words is "four million, six hundred forty thousand, thirty-eight".