208446442 has 4 divisors (see below), whose sum is σ = 312669666. Its totient is φ = 104223220.

The previous prime is 208446439. The next prime is 208446451. The reversal of 208446442 is 244644802.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 174794841 + 33651601 = 13221^2 + 5801^2 .

It is a junction number, because it is equal to n+sod(n) for n = 208446398 and 208446407.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52111609 + ... + 52111612.

Almost surely, 2^208446442 is an apocalyptic number.

208446442 is a deficient number, since it is larger than the sum of its proper divisors (104223224).

208446442 is a wasteful number, since it uses less digits than its factorization.

208446442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104223223.

The product of its (nonzero) digits is 49152, while the sum is 34.

The square root of 208446442 is about 14437.6743972151. The cubic root of 208446442 is about 592.9228154610.

The spelling of 208446442 in words is "two hundred eight million, four hundred forty-six thousand, four hundred forty-two".