208880404402 has 8 divisors (see below), whose sum is σ = 316093355676. Its totient is φ = 103515952512.

The previous prime is 208880404393. The next prime is 208880404409. The reversal of 208880404402 is 204404088802.

It can be written as a sum of positive squares in 2 ways, for example, as 208820666961 + 59737441 = 456969^2 + 7729^2 .

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

It is not an unprimeable number, because it can be changed into a prime (208880404409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462124563 + ... + 462125014.

Almost surely, 2^208880404402 is an apocalyptic number.

208880404402 is a deficient number, since it is larger than the sum of its proper divisors (107212951274).

208880404402 is a wasteful number, since it uses less digits than its factorization.

208880404402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924249692.

The product of its (nonzero) digits is 131072, while the sum is 40.

The spelling of 208880404402 in words is "two hundred eight billion, eight hundred eighty million, four hundred four thousand, four hundred two".