205994442 has 16 divisors (see below), whose sum is σ = 425279232. Its totient is φ = 66449760.

The previous prime is 205994419. The next prime is 205994443. The reversal of 205994442 is 244499502.

205994442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 205994442.

It is not an unprimeable number, because it can be changed into a prime (205994443) 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, 553563 + ... + 553934.

It is an arithmetic number, because the mean of its divisors is an integer number (26579952).

Almost surely, 2^205994442 is an apocalyptic number.

205994442 is an abundant number, since it is smaller than the sum of its proper divisors (219284790).

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

205994442 is a wasteful number, since it uses less digits than its factorization.

205994442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107533.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 205994442 is about 14352.5064709966. The cubic root of 205994442 is about 590.5887467908.

The spelling of 205994442 in words is "two hundred five million, nine hundred ninety-four thousand, four hundred forty-two".