205244042 has 16 divisors (see below), whose sum is σ = 338160960. Its totient is φ = 92993472.

The previous prime is 205244027. The next prime is 205244051. The reversal of 205244042 is 240442502.

205244042 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 205243999 and 205244017.

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, 116543 + ... + 118290.

It is an arithmetic number, because the mean of its divisors is an integer number (21135060).

Almost surely, 2^205244042 is an apocalyptic number.

205244042 is a deficient number, since it is larger than the sum of its proper divisors (132916918).

205244042 is a wasteful number, since it uses less digits than its factorization.

205244042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234877.

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 205244042 is about 14326.3408447517. The cubic root of 205244042 is about 589.8707387036.

Adding to 205244042 its reverse (240442502), we get a palindrome (445686544).

The spelling of 205244042 in words is "two hundred five million, two hundred forty-four thousand, forty-two".