108666434 has 16 divisors (see below), whose sum is σ = 172277280. Its totient is φ = 51264000.

The previous prime is 108666433. The next prime is 108666449. The reversal of 108666434 is 434666801.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (108666433) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 3842 + ... + 15234.

It is an arithmetic number, because the mean of its divisors is an integer number (10767330).

Almost surely, 2^108666434 is an apocalyptic number.

108666434 is a deficient number, since it is larger than the sum of its proper divisors (63610846).

108666434 is a wasteful number, since it uses less digits than its factorization.

108666434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11665.

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 108666434 is about 10424.3193542792. The cubic root of 108666434 is about 477.1978428835.

The spelling of 108666434 in words is "one hundred eight million, six hundred sixty-six thousand, four hundred thirty-four".