42378124 has 6 divisors (see below), whose sum is σ = 74161724. Its totient is φ = 21189060.

The previous prime is 42378097. The next prime is 42378139. The reversal of 42378124 is 42187324.

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 as a sum of consecutive naturals, namely, 5297262 + ... + 5297269.

Almost surely, 2^42378124 is an apocalyptic number.

It is an amenable number.

42378124 is a deficient number, since it is larger than the sum of its proper divisors (31783600).

42378124 is a wasteful number, since it uses less digits than its factorization.

42378124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10594535 (or 10594533 counting only the distinct ones).

The product of its digits is 10752, while the sum is 31.

The square root of 42378124 is about 6509.8482317178. The cubic root of 42378124 is about 348.6426996546.

The spelling of 42378124 in words is "forty-two million, three hundred seventy-eight thousand, one hundred twenty-four".