4894638 has 16 divisors (see below), whose sum is σ = 11187840. Its totient is φ = 1398456.

The previous prime is 4894633. The next prime is 4894639. The reversal of 4894638 is 8364984.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 116539 = 4894638 / (4 + 8 + 9 + 4 + 6 + 3 + 8).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 4894638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4894633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58228 + ... + 58311.

It is an arithmetic number, because the mean of its divisors is an integer number (699240).

Almost surely, 2^4894638 is an apocalyptic number.

4894638 is an abundant number, since it is smaller than the sum of its proper divisors (6293202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4894638 is a wasteful number, since it uses less digits than its factorization.

4894638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116551.

The product of its digits is 165888, while the sum is 42.

The square root of 4894638 is about 2212.3828782559. The cubic root of 4894638 is about 169.7879478294.

It can be divided in two parts, 48946 and 38, that added together give a palindrome (48984).

The spelling of 4894638 in words is "four million, eight hundred ninety-four thousand, six hundred thirty-eight".