2215827140 has 24 divisors (see below), whose sum is σ = 4779001752. Its totient is φ = 862375680.

The previous prime is 2215827137. The next prime is 2215827151. The reversal of 2215827140 is 417285122.

It can be written as a sum of positive squares in 4 ways, for example, as 159567424 + 2056259716 = 12632^2 + 45346^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2215827097 and 2215827106.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1496441 + ... + 1497920.

It is an arithmetic number, because the mean of its divisors is an integer number (199125073).

Almost surely, 2^2215827140 is an apocalyptic number.

2215827140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2215827140 is an abundant number, since it is smaller than the sum of its proper divisors (2563174612).

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

2215827140 is a wasteful number, since it uses less digits than its factorization.

2215827140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2994407 (or 2994405 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 2215827140 is about 47072.5731185369. The cubic root of 2215827140 is about 1303.7028826436.

The spelling of 2215827140 in words is "two billion, two hundred fifteen million, eight hundred twenty-seven thousand, one hundred forty".