108820642 has 16 divisors (see below), whose sum is σ = 191100672. Its totient is φ = 45499680.

The previous prime is 108820631. The next prime is 108820661. The reversal of 108820642 is 246028801.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94218 + ... + 95365.

It is an arithmetic number, because the mean of its divisors is an integer number (11943792).

Almost surely, 2^108820642 is an apocalyptic number.

108820642 is a deficient number, since it is larger than the sum of its proper divisors (82280030).

108820642 is a wasteful number, since it uses less digits than its factorization.

108820642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189633.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 108820642 is about 10431.7132821028. The cubic root of 108820642 is about 477.4234658913.

The spelling of 108820642 in words is "one hundred eight million, eight hundred twenty thousand, six hundred forty-two".