202442220 has 48 divisors (see below), whose sum is σ = 629821920. Its totient is φ = 53984448.

The previous prime is 202442209. The next prime is 202442249. The reversal of 202442220 is 22244202.

202442220 is a `hidden beast` number, since 2 + 0 + 2 + 442 + 220 = 666.

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 = 202442193 and 202442202.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 186907 + ... + 187986.

It is an arithmetic number, because the mean of its divisors is an integer number (13121290).

Almost surely, 2^202442220 is an apocalyptic number.

202442220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202442220 is an abundant number, since it is smaller than the sum of its proper divisors (427379700).

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

202442220 is a wasteful number, since it uses less digits than its factorization.

202442220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374911 (or 374903 counting only the distinct ones).

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

The square root of 202442220 is about 14228.2191436595. The cubic root of 202442220 is about 587.1742887507.

Adding to 202442220 its reverse (22244202), we get a palindrome (224686422).

It can be divided in two parts, 2024 and 42220, that added together give a palindrome (44244).

The spelling of 202442220 in words is "two hundred two million, four hundred forty-two thousand, two hundred twenty".