4920638 has 8 divisors (see below), whose sum is σ = 7482288. Its totient is φ = 2426544.

The previous prime is 4920631. The next prime is 4920647. The reversal of 4920638 is 8360294.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 4⁸ + 9⁴ + 2¹⁵ + 0 + 6² + 3¹⁴ + 8⁵ .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4920631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16706 + ... + 16997.

It is an arithmetic number, because the mean of its divisors is an integer number (935286).

Almost surely, 2^4920638 is an apocalyptic number.

4920638 is a deficient number, since it is larger than the sum of its proper divisors (2561650).

4920638 is a wasteful number, since it uses less digits than its factorization.

4920638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33778.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 4920638 is about 2218.2511129266. The cubic root of 4920638 is about 170.0880512719.

The spelling of 4920638 in words is "four million, nine hundred twenty thousand, six hundred thirty-eight".