42398625 has 16 divisors (see below), whose sum is σ = 70551936. Its totient is φ = 22612400.

The previous prime is 42398593. The next prime is 42398627. The reversal of 42398625 is 52689324.

It is a happy number.

42398625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42398625 - 2⁵ = 42398593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42398627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56157 + ... + 56906.

It is an arithmetic number, because the mean of its divisors is an integer number (4409496).

Almost surely, 2^42398625 is an apocalyptic number.

It is an amenable number.

42398625 is a deficient number, since it is larger than the sum of its proper divisors (28153311).

42398625 is a wasteful number, since it uses less digits than its factorization.

42398625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113081 (or 113071 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The square root of 42398625 is about 6511.4226556107. The cubic root of 42398625 is about 348.6989108240.

The spelling of 42398625 in words is "forty-two million, three hundred ninety-eight thousand, six hundred twenty-five".