220885386 has 16 divisors (see below), whose sum is σ = 467757504. Its totient is φ = 69297344.

The previous prime is 220885381. The next prime is 220885391. The reversal of 220885386 is 683588022.

It is an interprime number because it is at equal distance from previous prime (220885381) and next prime (220885391).

It is not an unprimeable number, because it can be changed into a prime (220885381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1082670 + ... + 1082873.

It is an arithmetic number, because the mean of its divisors is an integer number (29234844).

Almost surely, 2^220885386 is an apocalyptic number.

220885386 is an abundant number, since it is smaller than the sum of its proper divisors (246872118).

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

220885386 is a wasteful number, since it uses less digits than its factorization.

220885386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2165565.

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 220885386 is about 14862.2133614075. The cubic root of 220885386 is about 604.4898242158.

The spelling of 220885386 in words is "two hundred twenty million, eight hundred eighty-five thousand, three hundred eighty-six".