2208215520 has 480 divisors, whose sum is σ = 9031974336. Its totient is φ = 497664000.

The previous prime is 2208215509. The next prime is 2208215521. The reversal of 2208215520 is 255128022.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2208215521) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 9162600 + ... + 9162840.

Almost surely, 2^2208215520 is an apocalyptic number.

2208215520 is a gapful number since it is divisible by the number (20) 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 2208215520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4515987168).

2208215520 is an abundant number, since it is smaller than the sum of its proper divisors (6823758816).

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

2208215520 is a wasteful number, since it uses less digits than its factorization.

2208215520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376 (or 359 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 2208215520 is about 46991.6537270184. The cubic root of 2208215520 is about 1302.2083805023.

The spelling of 2208215520 in words is "two billion, two hundred eight million, two hundred fifteen thousand, five hundred twenty".