202220046 has 48 divisors (see below), whose sum is σ = 503684064. Its totient is φ = 57436992.

The previous prime is 202220041. The next prime is 202220089. The reversal of 202220046 is 640022202.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202220041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17160 + ... + 26436.

It is an arithmetic number, because the mean of its divisors is an integer number (10493418).

Almost surely, 2^202220046 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 202220046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251842032).

202220046 is an abundant number, since it is smaller than the sum of its proper divisors (301464018).

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

202220046 is a wasteful number, since it uses less digits than its factorization.

202220046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9465 (or 9462 counting only the distinct ones).

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

The square root of 202220046 is about 14220.4094877750. The cubic root of 202220046 is about 586.9594083222.

Adding to 202220046 its reverse (640022202), we get a palindrome (842242248).

The spelling of 202220046 in words is "two hundred two million, two hundred twenty thousand, forty-six".