204400034 has 16 divisors (see below), whose sum is σ = 320405760. Its totient is φ = 97611360.

The previous prime is 204399997. The next prime is 204400037. The reversal of 204400034 is 430004402.

204400034 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 204399985 and 204400021.

It is not an unprimeable number, because it can be changed into a prime (204400037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32087 + ... + 37925.

It is an arithmetic number, because the mean of its divisors is an integer number (20025360).

Almost surely, 2^204400034 is an apocalyptic number.

204400034 is a deficient number, since it is larger than the sum of its proper divisors (116005726).

204400034 is a wasteful number, since it uses less digits than its factorization.

204400034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6625.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 204400034 is about 14296.8539896020. The cubic root of 204400034 is about 589.0610690521.

Adding to 204400034 its reverse (430004402), we get a palindrome (634404436).

The spelling of 204400034 in words is "two hundred four million, four hundred thousand, thirty-four".