4220755272 has 24 divisors (see below), whose sum is σ = 11431212390. Its totient is φ = 1406918400.

The previous prime is 4220755271. The next prime is 4220755283. The reversal of 4220755272 is 2725570224.

4220755272 is a `hidden beast` number, since 42 + 20 + 75 + 527 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2613867876 + 1606887396 = 51126^2 + 40086^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×4220755272² = 35629550132231587968, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (4220755271) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29310729 + ... + 29310872.

Almost surely, 2^4220755272 is an apocalyptic number.

It is an amenable number.

4220755272 is an abundant number, since it is smaller than the sum of its proper divisors (7210457118).

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

4220755272 is a wasteful number, since it uses less digits than its factorization.

4220755272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58621613 (or 58621606 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 36.

The square root of 4220755272 is about 64967.3400409775. The cubic root of 4220755272 is about 1616.0819904565.

It can be divided in two parts, 42207 and 55272, that added together give a palindrome (97479).

The spelling of 4220755272 in words is "four billion, two hundred twenty million, seven hundred fifty-five thousand, two hundred seventy-two".