4390618220 has 24 divisors (see below), whose sum is σ = 9762669504. Its totient is φ = 1652938496.

The previous prime is 4390618201. The next prime is 4390618229. The reversal of 4390618220 is 228160934.

It is not an unprimeable number, because it can be changed into a prime (4390618229) 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, 6456452 + ... + 6457131.

It is an arithmetic number, because the mean of its divisors is an integer number (406777896).

Almost surely, 2^4390618220 is an apocalyptic number.

It is an amenable number.

4390618220 is an abundant number, since it is smaller than the sum of its proper divisors (5372051284).

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

4390618220 is a wasteful number, since it uses less digits than its factorization.

4390618220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12913609 (or 12913607 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 4390618220 is about 66261.7402427675. The cubic root of 4390618220 is about 1637.4770621653.

It can be divided in two parts, 43906 and 18220, that added together give a palindrome (62126).

The spelling of 4390618220 in words is "four billion, three hundred ninety million, six hundred eighteen thousand, two hundred twenty".