42405875 has 8 divisors (see below), whose sum is σ = 52922688. Its totient is φ = 33924600.

The previous prime is 42405827. The next prime is 42405877. The reversal of 42405875 is 57850424.

It is not a de Polignac number, because 42405875 - 2⁸ = 42405619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42405877) 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, 169499 + ... + 169748.

It is an arithmetic number, because the mean of its divisors is an integer number (6615336).

Almost surely, 2^42405875 is an apocalyptic number.

42405875 is a deficient number, since it is larger than the sum of its proper divisors (10516813).

42405875 is an equidigital number, since it uses as much as digits as its factorization.

42405875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339262 (or 339252 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 35.

The square root of 42405875 is about 6511.9793457903. The cubic root of 42405875 is about 348.7187850772.

The spelling of 42405875 in words is "forty-two million, four hundred five thousand, eight hundred seventy-five".