42425385 has 16 divisors (see below), whose sum is σ = 71453760. Its totient is φ = 21435840.

The previous prime is 42425381. The next prime is 42425417. The reversal of 42425385 is 58352424.

It is not a de Polignac number, because 42425385 - 2² = 42425381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42425381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74146 + ... + 74715.

It is an arithmetic number, because the mean of its divisors is an integer number (4465860).

Almost surely, 2^42425385 is an apocalyptic number.

It is an amenable number.

42425385 is a deficient number, since it is larger than the sum of its proper divisors (29028375).

42425385 is a wasteful number, since it uses less digits than its factorization.

42425385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148888.

The product of its digits is 38400, while the sum is 33.

The square root of 42425385 is about 6513.4771819666. The cubic root of 42425385 is about 348.7722561303.

The spelling of 42425385 in words is "forty-two million, four hundred twenty-five thousand, three hundred eighty-five".