105680404 has 6 divisors (see below), whose sum is σ = 184940714. Its totient is φ = 52840200.

The previous prime is 105680363. The next prime is 105680429. The reversal of 105680404 is 404086501.

It can be written as a sum of positive squares in only one way, i.e., 91164304 + 14516100 = 9548^2 + 3810^2 .

It is a super-2 number, since 2×105680404² = 22336695579206432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13210047 + ... + 13210054.

Almost surely, 2^105680404 is an apocalyptic number.

It is an amenable number.

105680404 is a deficient number, since it is larger than the sum of its proper divisors (79260310).

105680404 is a wasteful number, since it uses less digits than its factorization.

105680404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26420105 (or 26420103 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 105680404 is about 10280.0974703550. The cubic root of 105680404 is about 472.7862326989.

The spelling of 105680404 in words is "one hundred five million, six hundred eighty thousand, four hundred four".