102684448 has 12 divisors (see below), whose sum is σ = 202160070. Its totient is φ = 51342208.

The previous prime is 102684433. The next prime is 102684469. The reversal of 102684448 is 844486201.

It can be written as a sum of positive squares in only one way, i.e., 84125584 + 18558864 = 9172^2 + 4308^2 .

It is a super-2 number, since 2×102684448² = 21088191722129408, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 1604413 + ... + 1604476.

Almost surely, 2^102684448 is an apocalyptic number.

It is an amenable number.

102684448 is a deficient number, since it is larger than the sum of its proper divisors (99475622).

102684448 is an equidigital number, since it uses as much as digits as its factorization.

102684448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3208899 (or 3208891 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 37.

The square root of 102684448 is about 10133.3335087719. Note that the first 3 decimals coincide. The cubic root of 102684448 is about 468.2756308500.

The spelling of 102684448 in words is "one hundred two million, six hundred eighty-four thousand, four hundred forty-eight".