220240969 has 12 divisors (see below), whose sum is σ = 244040016. Its totient is φ = 198564912.

The previous prime is 220240961. The next prime is 220240973. The reversal of 220240969 is 969042022.

It is a happy number.

It is not a de Polignac number, because 220240969 - 2³ = 220240961 is a prime.

It is a super-2 number, since 2×220240969² = 97012168852117922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220240961) 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 11 ways as a sum of consecutive naturals, for example, 7887 + ... + 22420.

It is an arithmetic number, because the mean of its divisors is an integer number (20336668).

Almost surely, 2^220240969 is an apocalyptic number.

It is an amenable number.

220240969 is a deficient number, since it is larger than the sum of its proper divisors (23799047).

220240969 is a wasteful number, since it uses less digits than its factorization.

220240969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30376 (or 30363 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 220240969 is about 14840.5178144160. The cubic root of 220240969 is about 603.9013999612.

The spelling of 220240969 in words is "two hundred twenty million, two hundred forty thousand, nine hundred sixty-nine".