242021204 has 6 divisors (see below), whose sum is σ = 423537114. Its totient is φ = 121010600.

The previous prime is 242021191. The next prime is 242021209. The reversal of 242021204 is 402120242.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 241740304 + 280900 = 15548^2 + 530^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242021209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30252647 + ... + 30252654.

It is an arithmetic number, because the mean of its divisors is an integer number (70589519).

Almost surely, 2^242021204 is an apocalyptic number.

It is an amenable number.

242021204 is a deficient number, since it is larger than the sum of its proper divisors (181515910).

242021204 is a wasteful number, since it uses less digits than its factorization.

242021204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60505305 (or 60505303 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 242021204 is about 15557.0306935482. The cubic root of 242021204 is about 623.1861685302.

Adding to 242021204 its reverse (402120242), we get a palindrome (644141446).

The spelling of 242021204 in words is "two hundred forty-two million, twenty-one thousand, two hundred four".