108368642 has 18 divisors (see below), whose sum is σ = 173077083. Its totient is φ = 50879232.

The previous prime is 108368641. The next prime is 108368677. The reversal of 108368642 is 246863801.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 38328481 + 70040161 = 6191^2 + 8369^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=7361.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 108368596 and 108368605.

It is not an unprimeable number, because it can be changed into a prime (108368641) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 250058 + ... + 250490.

Almost surely, 2^108368642 is an apocalyptic number.

108368642 is a deficient number, since it is larger than the sum of its proper divisors (64708441).

108368642 is an frugal number, since it uses more digits than its factorization.

108368642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902 (or 452 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 108368642 is about 10410.0260326284. The cubic root of 108368642 is about 476.7615360968.

The spelling of 108368642 in words is "one hundred eight million, three hundred sixty-eight thousand, six hundred forty-two".