4638038 has 4 divisors (see below), whose sum is σ = 6957060. Its totient is φ = 2319018.

The previous prime is 4638037. The next prime is 4638041. The reversal of 4638038 is 8308364.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×4638038² = 43022792978888, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4637995 and 4638013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4638037) by changing a digit.

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 as a sum of consecutive naturals, namely, 1159508 + ... + 1159511.

It is an arithmetic number, because the mean of its divisors is an integer number (1739265).

Almost surely, 2^4638038 is an apocalyptic number.

4638038 is a deficient number, since it is larger than the sum of its proper divisors (2319022).

4638038 is a wasteful number, since it uses less digits than its factorization.

4638038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2319021.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 4638038 is about 2153.6104568840. The cubic root of 4638038 is about 166.7675060873.

The spelling of 4638038 in words is "four million, six hundred thirty-eight thousand, thirty-eight".