42775375 has 8 divisors (see below), whose sum is σ = 53383824. Its totient is φ = 34220200.

The previous prime is 42775361. The next prime is 42775379. The reversal of 42775375 is 57357724.

It is a happy number.

It is not a de Polignac number, because 42775375 - 2¹³ = 42767183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42775379) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170977 + ... + 171226.

It is an arithmetic number, because the mean of its divisors is an integer number (6672978).

Almost surely, 2^42775375 is an apocalyptic number.

42775375 is a deficient number, since it is larger than the sum of its proper divisors (10608449).

42775375 is an equidigital number, since it uses as much as digits as its factorization.

42775375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342218 (or 342208 counting only the distinct ones).

The product of its digits is 205800, while the sum is 40.

The square root of 42775375 is about 6540.2886021949. The cubic root of 42775375 is about 349.7287013248.

The spelling of 42775375 in words is "forty-two million, seven hundred seventy-five thousand, three hundred seventy-five".