202220864 has 28 divisors (see below), whose sum is σ = 408860244. Its totient is φ = 99201024.

The previous prime is 202220813. The next prime is 202220869. The reversal of 202220864 is 468022202.

It can be written as a sum of positive squares in 2 ways, for example, as 182790400 + 19430464 = 13520^2 + 4408^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202220869) 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, 26417 + ... + 33200.

Almost surely, 2^202220864 is an apocalyptic number.

It is an amenable number.

202220864 is an abundant number, since it is smaller than the sum of its proper divisors (206639380).

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

202220864 is an equidigital number, since it uses as much as digits as its factorization.

202220864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59682 (or 59672 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 202220864 is about 14220.4382492242. The cubic root of 202220864 is about 586.9601997573.

The spelling of 202220864 in words is "two hundred two million, two hundred twenty thousand, eight hundred sixty-four".