2215073680 has 20 divisors (see below), whose sum is σ = 5150046492. Its totient is φ = 886029440.

The previous prime is 2215073647. The next prime is 2215073681. The reversal of 2215073680 is 863705122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1085307136 + 1129766544 = 32944^2 + 33612^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (2215073681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13844131 + ... + 13844290.

Almost surely, 2^2215073680 is an apocalyptic number.

2215073680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2215073680 is an abundant number, since it is smaller than the sum of its proper divisors (2934972812).

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

2215073680 is a wasteful number, since it uses less digits than its factorization.

2215073680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27688434 (or 27688428 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 2215073680 is about 47064.5692639378. The cubic root of 2215073680 is about 1303.5550974494. Note that the first 3 decimals are identical.

The spelling of 2215073680 in words is "two billion, two hundred fifteen million, seventy-three thousand, six hundred eighty".