4821388 has 24 divisors (see below), whose sum is σ = 9913680. Its totient is φ = 2022720.

The previous prime is 4821373. The next prime is 4821389. The reversal of 4821388 is 8831284.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4821389) 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, 3643 + ... + 4786.

It is an arithmetic number, because the mean of its divisors is an integer number (413070).

Almost surely, 2^4821388 is an apocalyptic number.

It is an amenable number.

4821388 is an abundant number, since it is smaller than the sum of its proper divisors (5092292).

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

4821388 is a wasteful number, since it uses less digits than its factorization.

4821388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8457 (or 8455 counting only the distinct ones).

The product of its digits is 12288, while the sum is 34.

The square root of 4821388 is about 2195.7659255941. The cubic root of 4821388 is about 168.9367082068.

The spelling of 4821388 in words is "four million, eight hundred twenty-one thousand, three hundred eighty-eight".