108918490 has 32 divisors (see below), whose sum is σ = 214753680. Its totient is φ = 39588864.

The previous prime is 108918479. The next prime is 108918499. The reversal of 108918490 is 94819801.

It can be written as a sum of positive squares in 8 ways, for example, as 88115769 + 20802721 = 9387^2 + 4561^2 .

It is not an unprimeable number, because it can be changed into a prime (108918499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6117 + ... + 15976.

Almost surely, 2^108918490 is an apocalyptic number.

108918490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

108918490 is a deficient number, since it is larger than the sum of its proper divisors (105835190).

108918490 is a wasteful number, since it uses less digits than its factorization.

108918490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22146.

The product of its (nonzero) digits is 20736, while the sum is 40.

The square root of 108918490 is about 10436.4021578320. The cubic root of 108918490 is about 477.5665176013.

The spelling of 108918490 in words is "one hundred eight million, nine hundred eighteen thousand, four hundred ninety".