208039442 has 8 divisors (see below), whose sum is σ = 336063756. Its totient is φ = 96018192.

The previous prime is 208039427. The next prime is 208039451. The reversal of 208039442 is 244930802.

It can be written as a sum of positive squares in 2 ways, for example, as 205320241 + 2719201 = 14329^2 + 1649^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 208039399 and 208039408.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4000733 + ... + 4000784.

Almost surely, 2^208039442 is an apocalyptic number.

208039442 is a deficient number, since it is larger than the sum of its proper divisors (128024314).

208039442 is a wasteful number, since it uses less digits than its factorization.

208039442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8001532.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 208039442 is about 14423.5724423598. The cubic root of 208039442 is about 592.5366622023.

The spelling of 208039442 in words is "two hundred eight million, thirty-nine thousand, four hundred forty-two".