2918229220 has 96 divisors (see below), whose sum is σ = 6485633280. Its totient is φ = 1101703680.

The previous prime is 2918229169. The next prime is 2918229227. The reversal of 2918229220 is 229228192.

2918229220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 2918229220.

It is not an unprimeable number, because it can be changed into a prime (2918229227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3519766 + ... + 3520594.

It is an arithmetic number, because the mean of its divisors is an integer number (67558680).

Almost surely, 2^2918229220 is an apocalyptic number.

2918229220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2918229220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3242816640).

2918229220 is an abundant number, since it is smaller than the sum of its proper divisors (3567404060).

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

2918229220 is a wasteful number, since it uses less digits than its factorization.

2918229220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013 (or 1011 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 2918229220 is about 54020.6369825458. The cubic root of 2918229220 is about 1429.0249143445.

The spelling of 2918229220 in words is "two billion, nine hundred eighteen million, two hundred twenty-nine thousand, two hundred twenty".