220949605 has 8 divisors (see below), whose sum is σ = 265255200. Its totient is φ = 176682576.

The previous prime is 220949591. The next prime is 220949653. The reversal of 220949605 is 506949022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 220949605 - 2¹¹ = 220947557 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4986 + ... + 21604.

It is an arithmetic number, because the mean of its divisors is an integer number (33156900).

Almost surely, 2^220949605 is an apocalyptic number.

It is an amenable number.

220949605 is a deficient number, since it is larger than the sum of its proper divisors (44305595).

220949605 is a wasteful number, since it uses less digits than its factorization.

220949605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19283.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 220949605 is about 14864.3736834083. The cubic root of 220949605 is about 604.5484005530.

The spelling of 220949605 in words is "two hundred twenty million, nine hundred forty-nine thousand, six hundred five".