202424220 has 72 divisors (see below), whose sum is σ = 628323696. Its totient is φ = 52722432.

The previous prime is 202424197. The next prime is 202424237. The reversal of 202424220 is 22424202.

202424220 is a `hidden beast` number, since 2 + 0 + 242 + 422 + 0 = 666.

202424220 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 202424193 and 202424202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5337 + ... + 20816.

It is an arithmetic number, because the mean of its divisors is an integer number (8726718).

Almost surely, 2^202424220 is an apocalyptic number.

202424220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202424220 is an abundant number, since it is smaller than the sum of its proper divisors (425899476).

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

202424220 is a wasteful number, since it uses less digits than its factorization.

202424220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26211 (or 26206 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 202424220 is about 14227.5865838167. The cubic root of 202424220 is about 587.1568855126.

Subtracting from 202424220 its sum of digits (18), we obtain a palindrome (202424202).

Adding to 202424220 its reverse (22424202), we get a palindrome (224848422).

It can be divided in two parts, 2024 and 24220, that added together give a square (26244 = 162²).

The spelling of 202424220 in words is "two hundred two million, four hundred twenty-four thousand, two hundred twenty".