42939075 has 12 divisors (see below), whose sum is σ = 70992728. Its totient is φ = 22900800.

The previous prime is 42939073. The next prime is 42939077. The reversal of 42939075 is 57093924.

42939075 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42939073) and next prime (42939077).

It is not a de Polignac number, because 42939075 - 2¹ = 42939073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42939073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 286186 + ... + 286335.

Almost surely, 2^42939075 is an apocalyptic number.

42939075 is a deficient number, since it is larger than the sum of its proper divisors (28053653).

42939075 is a wasteful number, since it uses less digits than its factorization.

42939075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572534 (or 572529 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 42939075 is about 6552.7913899345. The cubic root of 42939075 is about 350.1742669586.

The spelling of 42939075 in words is "forty-two million, nine hundred thirty-nine thousand, seventy-five".