42108944 has 20 divisors (see below), whose sum is σ = 81830700. Its totient is φ = 20991360.

The previous prime is 42108919. The next prime is 42108967. The reversal of 42108944 is 44980124.

It can be written as a sum of positive squares in 2 ways, for example, as 16908544 + 25200400 = 4112^2 + 5020^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42108944.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1814 + ... + 9354.

It is an arithmetic number, because the mean of its divisors is an integer number (4091535).

Almost surely, 2^42108944 is an apocalyptic number.

It is an amenable number.

42108944 is a deficient number, since it is larger than the sum of its proper divisors (39721756).

42108944 is a wasteful number, since it uses less digits than its factorization.

42108944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7898 (or 7892 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 42108944 is about 6489.1404669648. The cubic root of 42108944 is about 347.9029543992.

The spelling of 42108944 in words is "forty-two million, one hundred eight thousand, nine hundred forty-four".