2315042220 has 72 divisors (see below), whose sum is σ = 6532357104. Its totient is φ = 612596352.

The previous prime is 2315042209. The next prime is 2315042237. The reversal of 2315042220 is 222405132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1158262 + ... + 1160258.

It is an arithmetic number, because the mean of its divisors is an integer number (90727182).

Almost surely, 2^2315042220 is an apocalyptic number.

2315042220 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 2315042220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3266178552).

2315042220 is an abundant number, since it is smaller than the sum of its proper divisors (4217314884).

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

2315042220 is a wasteful number, since it uses less digits than its factorization.

2315042220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2287 (or 2146 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 2315042220 is about 48114.8856384383. The cubic root of 2315042220 is about 1322.8775265427.

Adding to 2315042220 its reverse (222405132), we get a palindrome (2537447352).

The spelling of 2315042220 in words is "two billion, three hundred fifteen million, forty-two thousand, two hundred twenty".