4220755 has 32 divisors (see below), whose sum is σ = 6658560. Its totient is φ = 2488320.

The previous prime is 4220731. The next prime is 4220767. The reversal of 4220755 is 5570224.

It is not a de Polignac number, because 4220755 - 2⁹ = 4220243 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7027 + ... + 7603.

It is an arithmetic number, because the mean of its divisors is an integer number (208080).

Almost surely, 2^4220755 is an apocalyptic number.

4220755 is a deficient number, since it is larger than the sum of its proper divisors (2437805).

4220755 is a wasteful number, since it uses less digits than its factorization.

4220755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619.

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 4220755 is about 2054.4476143236. The cubic root of 4220755 is about 161.6081955741.

Adding to 4220755 its reverse (5570224), we get a palindrome (9790979).

The spelling of 4220755 in words is "four million, two hundred twenty thousand, seven hundred fifty-five".