4220269 has 2 divisors, whose sum is σ = 4220270. Its totient is φ = 4220268.

The previous prime is 4220243. The next prime is 4220287. The reversal of 4220269 is 9620224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4052169 + 168100 = 2013^2 + 410^2 .

It is a cyclic number.

It is not a de Polignac number, because 4220269 - 2⁷ = 4220141 is a prime.

It is a super-2 number, since 2×4220269² = 35621340864722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4220239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110134 + 2110135.

It is an arithmetic number, because the mean of its divisors is an integer number (2110135).

Almost surely, 2^4220269 is an apocalyptic number.

It is an amenable number.

4220269 is a deficient number, since it is larger than the sum of its proper divisors (1).

4220269 is an equidigital number, since it uses as much as digits as its factorization.

4220269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 4220269 is about 2054.3293309496. The cubic root of 4220269 is about 161.6019925293.

It can be divided in two parts, 4220 and 269, that added together give a square (4489 = 67²).

The spelling of 4220269 in words is "four million, two hundred twenty thousand, two hundred sixty-nine".