220429969 has 2 divisors, whose sum is σ = 220429970. Its totient is φ = 220429968.

The previous prime is 220429943. The next prime is 220430003. The reversal of 220429969 is 969924022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116899344 + 103530625 = 10812^2 + 10175^2 .

It is a cyclic number.

It is not a de Polignac number, because 220429969 - 2⁹ = 220429457 is a prime.

It is a super-2 number, since 2×220429969² = 97178742466681922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220429919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110214984 + 110214985.

It is an arithmetic number, because the mean of its divisors is an integer number (110214985).

Almost surely, 2^220429969 is an apocalyptic number.

It is an amenable number.

220429969 is a deficient number, since it is larger than the sum of its proper divisors (1).

220429969 is an equidigital number, since it uses as much as digits as its factorization.

220429969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 220429969 is about 14846.8841512285. The cubic root of 220429969 is about 604.0740967603.

The spelling of 220429969 in words is "two hundred twenty million, four hundred twenty-nine thousand, nine hundred sixty-nine".