42387875 has 8 divisors (see below), whose sum is σ = 52900224. Its totient is φ = 33910200.

The previous prime is 42387871. The next prime is 42387883. The reversal of 42387875 is 57878324.

It is a happy number.

It is not a de Polignac number, because 42387875 - 2² = 42387871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42387871) 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, 169427 + ... + 169676.

It is an arithmetic number, because the mean of its divisors is an integer number (6612528).

Almost surely, 2^42387875 is an apocalyptic number.

42387875 is a deficient number, since it is larger than the sum of its proper divisors (10512349).

42387875 is an equidigital number, since it uses as much as digits as its factorization.

42387875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339118 (or 339108 counting only the distinct ones).

The product of its digits is 376320, while the sum is 44.

The square root of 42387875 is about 6510.5971308322. The cubic root of 42387875 is about 348.6694379332.

The spelling of 42387875 in words is "forty-two million, three hundred eighty-seven thousand, eight hundred seventy-five".