108649242 has 128 divisors (see below), whose sum is σ = 275788800. Its totient is φ = 31477248.

The previous prime is 108649223. The next prime is 108649259. The reversal of 108649242 is 242946801.

108649242 is a `hidden beast` number, since 1 + 0 + 8 + 649 + 2 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 108649197 and 108649206.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1220734 + ... + 1220822.

It is an arithmetic number, because the mean of its divisors is an integer number (2154600).

Almost surely, 2^108649242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 108649242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137894400).

108649242 is an abundant number, since it is smaller than the sum of its proper divisors (167139558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

108649242 is a wasteful number, since it uses less digits than its factorization.

108649242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 108649242 is about 10423.4947114679. The cubic root of 108649242 is about 477.1726759032.

The spelling of 108649242 in words is "one hundred eight million, six hundred forty-nine thousand, two hundred forty-two".