204013242 has 40 divisors (see below), whose sum is σ = 467787936. Its totient is φ = 66420648.

The previous prime is 204013217. The next prime is 204013247. The reversal of 204013242 is 242310402.

204013242 is a `hidden beast` number, since 20 + 401 + 3 + 242 = 666.

It is a super-2 number, since 2×204013242² = 83242805822701128, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (204013247) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7678 + ... + 21609.

Almost surely, 2^204013242 is an apocalyptic number.

204013242 is an abundant number, since it is smaller than the sum of its proper divisors (263774694).

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

204013242 is a wasteful number, since it uses less digits than its factorization.

204013242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29344 (or 29335 counting only the distinct ones).

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

The square root of 204013242 is about 14283.3204122851. The cubic root of 204013242 is about 588.6892687569.

Adding to 204013242 its reverse (242310402), we get a palindrome (446323644).

The spelling of 204013242 in words is "two hundred four million, thirteen thousand, two hundred forty-two".