220270369 has 4 divisors (see below), whose sum is σ = 240294960. Its totient is φ = 200245780.

The previous prime is 220270367. The next prime is 220270387. The reversal of 220270369 is 963072022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 220270369 - 2¹ = 220270367 is a prime.

It is a super-2 number, since 2×220270369² = 97038070918792322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220270369.

It is not an unprimeable number, because it can be changed into a prime (220270367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10012279 + ... + 10012300.

It is an arithmetic number, because the mean of its divisors is an integer number (60073740).

Almost surely, 2^220270369 is an apocalyptic number.

It is an amenable number.

220270369 is a deficient number, since it is larger than the sum of its proper divisors (20024591).

220270369 is a wasteful number, since it uses less digits than its factorization.

220270369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20024590.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 220270369 is about 14841.5083128367. The cubic root of 220270369 is about 603.9282703951.

The spelling of 220270369 in words is "two hundred twenty million, two hundred seventy thousand, three hundred sixty-nine".