220729338 has 12 divisors (see below), whose sum is σ = 478246938. Its totient is φ = 73576440.

The previous prime is 220729307. The next prime is 220729349. The reversal of 220729338 is 833927022.

It can be written as a sum of positive squares in only one way, i.e., 139783329 + 80946009 = 11823^2 + 8997^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6131353 + ... + 6131388.

Almost surely, 2^220729338 is an apocalyptic number.

220729338 is an abundant number, since it is smaller than the sum of its proper divisors (257517600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220729338 is a wasteful number, since it uses less digits than its factorization.

220729338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12262749 (or 12262746 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 220729338 is about 14856.9626101704. The cubic root of 220729338 is about 604.3474401918.

The spelling of 220729338 in words is "two hundred twenty million, seven hundred twenty-nine thousand, three hundred thirty-eight".