2340215220 has 192 divisors, whose sum is σ = 7880818176. Its totient is φ = 507617280.

The previous prime is 2340215219. The next prime is 2340215221. The reversal of 2340215220 is 225120432.

It is an interprime number because it is at equal distance from previous prime (2340215219) and next prime (2340215221).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2340215221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 635304 + ... + 638976.

It is an arithmetic number, because the mean of its divisors is an integer number (41045928).

Almost surely, 2^2340215220 is an apocalyptic number.

2340215220 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 2340215220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3940409088).

2340215220 is an abundant number, since it is smaller than the sum of its proper divisors (5540602956).

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

2340215220 is a wasteful number, since it uses less digits than its factorization.

2340215220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3770 (or 3768 counting only the distinct ones).

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

The square root of 2340215220 is about 48375.7710016078. The cubic root of 2340215220 is about 1327.6550951749.

Adding to 2340215220 its reverse (225120432), we get a palindrome (2565335652).

The spelling of 2340215220 in words is "two billion, three hundred forty million, two hundred fifteen thousand, two hundred twenty".