42228375 has 32 divisors (see below), whose sum is σ = 80311296. Its totient is φ = 19303200.

The previous prime is 42228371. The next prime is 42228421. The reversal of 42228375 is 57382224.

It is not a de Polignac number, because 42228375 - 2² = 42228371 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42228371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5419 + ... + 10668.

It is an arithmetic number, because the mean of its divisors is an integer number (2509728).

Almost surely, 2^42228375 is an apocalyptic number.

42228375 is a deficient number, since it is larger than the sum of its proper divisors (38082921).

42228375 is a wasteful number, since it uses less digits than its factorization.

42228375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16112 (or 16102 counting only the distinct ones).

The product of its digits is 26880, while the sum is 33.

The square root of 42228375 is about 6498.3363255529. The cubic root of 42228375 is about 348.2315558261.

The spelling of 42228375 in words is "forty-two million, two hundred twenty-eight thousand, three hundred seventy-five".