204138070 has 16 divisors (see below), whose sum is σ = 368761248. Its totient is φ = 81363520.

The previous prime is 204138043. The next prime is 204138119. The reversal of 204138070 is 70831402.

204138070 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33514 + ... + 39133.

It is an arithmetic number, because the mean of its divisors is an integer number (23047578).

Almost surely, 2^204138070 is an apocalyptic number.

204138070 is a deficient number, since it is larger than the sum of its proper divisors (164623178).

204138070 is a wasteful number, since it uses less digits than its factorization.

204138070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72935.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 204138070 is about 14287.6894563117. The cubic root of 204138070 is about 588.8093098563.

Adding to 204138070 its reverse (70831402), we get a palindrome (274969472).

The spelling of 204138070 in words is "two hundred four million, one hundred thirty-eight thousand, seventy".