220202064 has 50 divisors (see below), whose sum is σ = 637332410. Its totient is φ = 73400256.

The previous prime is 220202063. The next prime is 220202093. The reversal of 220202064 is 460202022.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 141134400 + 79067664 = 11880^2 + 8892^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220202063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 83659 + ... + 86250.

Almost surely, 2^220202064 is an apocalyptic number.

220202064 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

220202064 is an abundant number, since it is smaller than the sum of its proper divisors (417130346).

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

220202064 is a wasteful number, since it uses less digits than its factorization.

220202064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169929 (or 169914 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 220202064 is about 14839.2069868979. The cubic root of 220202064 is about 603.8658386582.

Adding to 220202064 its reverse (460202022), we get a palindrome (680404086).

The spelling of 220202064 in words is "two hundred twenty million, two hundred two thousand, sixty-four".