8738220 has 24 divisors (see below), whose sum is σ = 24467184. Its totient is φ = 2330176.

The previous prime is 8738209. The next prime is 8738227. The reversal of 8738220 is 228378.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (8738227) 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 in 7 ways as a sum of consecutive naturals, for example, 72759 + ... + 72878.

It is an arithmetic number, because the mean of its divisors is an integer number (1019466).

Almost surely, 2^8738220 is an apocalyptic number.

It is an amenable number.

8738220 is an abundant number, since it is smaller than the sum of its proper divisors (15728964).

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

8738220 is a wasteful number, since it uses less digits than its factorization.

8738220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145649 (or 145647 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 8738220 is about 2956.0480374987. The cubic root of 8738220 is about 205.9717496686.

The spelling of 8738220 in words is "eight million, seven hundred thirty-eight thousand, two hundred twenty".