220394613 has 16 divisors (see below), whose sum is σ = 312771456. Its totient is φ = 137564160.

The previous prime is 220394611. The next prime is 220394627. The reversal of 220394613 is 316493022.

It is not a de Polignac number, because 220394613 - 2¹ = 220394611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220394611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1353 + ... + 21038.

It is an arithmetic number, because the mean of its divisors is an integer number (19548216).

Almost surely, 2^220394613 is an apocalyptic number.

It is an amenable number.

220394613 is a deficient number, since it is larger than the sum of its proper divisors (92376843).

220394613 is a wasteful number, since it uses less digits than its factorization.

220394613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22604.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 220394613 is about 14845.6934159372. The cubic root of 220394613 is about 604.0417980884.

The spelling of 220394613 in words is "two hundred twenty million, three hundred ninety-four thousand, six hundred thirteen".