42975090 has 32 divisors (see below), whose sum is σ = 114600960. Its totient is φ = 11459952.

The previous prime is 42975089. The next prime is 42975157. The reversal of 42975090 is 9057924.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79314 + ... + 79853.

It is an arithmetic number, because the mean of its divisors is an integer number (3581280).

Almost surely, 2^42975090 is an apocalyptic number.

42975090 is an abundant number, since it is smaller than the sum of its proper divisors (71625870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42975090 is a wasteful number, since it uses less digits than its factorization.

42975090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159183 (or 159177 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 42975090 is about 6555.5388794515. The cubic root of 42975090 is about 350.2721420829.

The spelling of 42975090 in words is "forty-two million, nine hundred seventy-five thousand, ninety".