2215810884 has 96 divisors (see below), whose sum is σ = 6016260096. Its totient is φ = 621653760.

The previous prime is 2215810879. The next prime is 2215810931. The reversal of 2215810884 is 4880185122.

It is a super-2 number, since 2×2215810884² = 9819635747305722912, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1866139 + ... + 1867325.

It is an arithmetic number, because the mean of its divisors is an integer number (62669376).

Almost surely, 2^2215810884 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2215810884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3008130048).

2215810884 is an abundant number, since it is smaller than the sum of its proper divisors (3800449212).

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

2215810884 is a wasteful number, since it uses less digits than its factorization.

2215810884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1585 (or 1583 counting only the distinct ones).

The product of its (nonzero) digits is 40960, while the sum is 39.

The square root of 2215810884 is about 47072.4004486706. The cubic root of 2215810884 is about 1303.6996945119.

The spelling of 2215810884 in words is "two billion, two hundred fifteen million, eight hundred ten thousand, eight hundred eighty-four".