2215963008 has 320 divisors, whose sum is σ = 7938374400. Its totient is φ = 599436288.

The previous prime is 2215962977. The next prime is 2215963031. The reversal of 2215963008 is 8003695122.

2215963008 is a `hidden beast` number, since 2 + 2 + 15 + 9 + 630 + 0 + 8 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1378141 + ... + 1379747.

It is an arithmetic number, because the mean of its divisors is an integer number (24807420).

Almost surely, 2^2215963008 is an apocalyptic number.

2215963008 is a gapful number since it is divisible by the number (28) 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 2215963008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3969187200).

2215963008 is an abundant number, since it is smaller than the sum of its proper divisors (5722411392).

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

2215963008 is a wasteful number, since it uses less digits than its factorization.

2215963008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659 (or 1638 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 2215963008 is about 47074.0162722494. The cubic root of 2215963008 is about 1303.7295285072.

The spelling of 2215963008 in words is "two billion, two hundred fifteen million, nine hundred sixty-three thousand, eight".