2215250340 has 48 divisors (see below), whose sum is σ = 6217935360. Its totient is φ = 589282560.

The previous prime is 2215250327. The next prime is 2215250363. The reversal of 2215250340 is 430525122.

It is a self number, because there is not a number n which added to its sum of digits gives 2215250340.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20596 + ... + 69675.

It is an arithmetic number, because the mean of its divisors is an integer number (129540320).

Almost surely, 2^2215250340 is an apocalyptic number.

2215250340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2215250340 is an abundant number, since it is smaller than the sum of its proper divisors (4002685020).

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

2215250340 is a wasteful number, since it uses less digits than its factorization.

2215250340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90692 (or 90690 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2215250340 is about 47066.4460098699. The cubic root of 2215250340 is about 1303.5897509124.

Adding to 2215250340 its reverse (430525122), we get a palindrome (2645775462).

The spelling of 2215250340 in words is "two billion, two hundred fifteen million, two hundred fifty thousand, three hundred forty".