4638822 has 32 divisors (see below), whose sum is σ = 9646560. Its totient is φ = 1486080.

The previous prime is 4638791. The next prime is 4638827. The reversal of 4638822 is 2288364.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4638827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26728 + ... + 26900.

It is an arithmetic number, because the mean of its divisors is an integer number (301455).

Almost surely, 2^4638822 is an apocalyptic number.

4638822 is an abundant number, since it is smaller than the sum of its proper divisors (5007738).

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

4638822 is a wasteful number, since it uses less digits than its factorization.

4638822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328.

The product of its digits is 18432, while the sum is 33.

The square root of 4638822 is about 2153.7924691112. The cubic root of 4638822 is about 166.7769021838.

It can be divided in two parts, 4638 and 822, that added together give a triangular number (5460 = T₁₀₄).

The spelling of 4638822 in words is "four million, six hundred thirty-eight thousand, eight hundred twenty-two".