242205500 has 24 divisors (see below), whose sum is σ = 528977904. Its totient is φ = 96882000.

The previous prime is 242205493. The next prime is 242205517. The reversal of 242205500 is 5502242.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241706 + ... + 242705.

It is an arithmetic number, because the mean of its divisors is an integer number (22040746).

Almost surely, 2^242205500 is an apocalyptic number.

242205500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242205500 is an abundant number, since it is smaller than the sum of its proper divisors (286772404).

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

242205500 is a wasteful number, since it uses less digits than its factorization.

242205500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484430 (or 484418 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 242205500 is about 15562.9528046576. The cubic root of 242205500 is about 623.3443111173.

Adding to 242205500 its reverse (5502242), we get a palindrome (247707742).

The spelling of 242205500 in words is "two hundred forty-two million, two hundred five thousand, five hundred".