42385671 has 6 divisors (see below), whose sum is σ = 61223760. Its totient is φ = 28257108.

The previous prime is 42385663. The next prime is 42385691. The reversal of 42385671 is 17658324.

It is not a de Polignac number, because 42385671 - 2³ = 42385663 is a prime.

It is a super-2 number, since 2×42385671² = 3593090212240482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42385661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2354751 + ... + 2354768.

It is an arithmetic number, because the mean of its divisors is an integer number (10203960).

Almost surely, 2^42385671 is an apocalyptic number.

42385671 is a deficient number, since it is larger than the sum of its proper divisors (18838089).

42385671 is a wasteful number, since it uses less digits than its factorization.

42385671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4709525 (or 4709522 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 42385671 is about 6510.4278661237. The cubic root of 42385671 is about 348.6633946896.

The spelling of 42385671 in words is "forty-two million, three hundred eighty-five thousand, six hundred seventy-one".