2215062720 has 672 divisors, whose sum is σ = 8902232640. Its totient is φ = 517570560.

The previous prime is 2215062653. The next prime is 2215062721. The reversal of 2215062720 is 272605122.

2215062720 is a `hidden beast` number, since 2 + 2 + 15 + 0 + 627 + 20 = 666.

It is a super-4 number, since 4×2215062720⁴ (a number of 38 digits) contains 4444 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (2215062721) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 54025900 + ... + 54025940.

It is an arithmetic number, because the mean of its divisors is an integer number (13247370).

Almost surely, 2^2215062720 is an apocalyptic number.

2215062720 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 2215062720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4451116320).

2215062720 is an abundant number, since it is smaller than the sum of its proper divisors (6687169920).

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

2215062720 is a wasteful number, since it uses less digits than its factorization.

2215062720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 2215062720 is about 47064.4528280102. The cubic root of 2215062720 is about 1303.5529474852.

Adding to 2215062720 its reverse (272605122), we get a palindrome (2487667842).

The spelling of 2215062720 in words is "two billion, two hundred fifteen million, sixty-two thousand, seven hundred twenty".