42418928 has 20 divisors (see below), whose sum is σ = 84192528. Its totient is φ = 20691840.

The previous prime is 42418919. The next prime is 42418931. The reversal of 42418928 is 82981424.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 42418891 and 42418900.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31676 + ... + 32987.

Almost surely, 2^42418928 is an apocalyptic number.

It is an amenable number.

42418928 is a deficient number, since it is larger than the sum of its proper divisors (41773600).

42418928 is a wasteful number, since it uses less digits than its factorization.

42418928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64712 (or 64706 counting only the distinct ones).

The product of its digits is 36864, while the sum is 38.

The square root of 42418928 is about 6512.9814985151. The cubic root of 42418928 is about 348.7545612469.

The spelling of 42418928 in words is "forty-two million, four hundred eighteen thousand, nine hundred twenty-eight".