109286242 has 16 divisors (see below), whose sum is σ = 178291512. Its totient is φ = 49939200.

The previous prime is 109286237. The next prime is 109286249. The reversal of 109286242 is 242682901.

It can be written as a sum of positive squares in 4 ways, for example, as 108347281 + 938961 = 10409^2 + 969^2 .

It is a junction number, because it is equal to n+sod(n) for n = 109286198 and 109286207.

It is not an unprimeable number, because it can be changed into a prime (109286249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18183 + ... + 23434.

Almost surely, 2^109286242 is an apocalyptic number.

109286242 is a deficient number, since it is larger than the sum of its proper divisors (69005270).

109286242 is a wasteful number, since it uses less digits than its factorization.

109286242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41733.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 109286242 is about 10454.0060263996. The cubic root of 109286242 is about 478.1033984402.

The spelling of 109286242 in words is "one hundred nine million, two hundred eighty-six thousand, two hundred forty-two".