220020396 has 12 divisors (see below), whose sum is σ = 513380952. Its totient is φ = 73340128.

The previous prime is 220020377. The next prime is 220020397. The reversal of 220020396 is 693020022.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (220020397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9167505 + ... + 9167528.

It is an arithmetic number, because the mean of its divisors is an integer number (42781746).

Almost surely, 2^220020396 is an apocalyptic number.

It is an amenable number.

220020396 is an abundant number, since it is smaller than the sum of its proper divisors (293360556).

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

220020396 is a wasteful number, since it uses less digits than its factorization.

220020396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18335040 (or 18335038 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 220020396 is about 14833.0845072763. The cubic root of 220020396 is about 603.6997286778.

The spelling of 220020396 in words is "two hundred twenty million, twenty thousand, three hundred ninety-six".