42385907 has 4 divisors (see below), whose sum is σ = 43847520. Its totient is φ = 40924296.

The previous prime is 42385877. The next prime is 42385919. The reversal of 42385907 is 70958324.

42385907 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42385907 - 2¹² = 42381811 is a prime.

It is a super-2 number, since 2×42385907² = 3593130224425298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42385927) 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 3 ways as a sum of consecutive naturals, for example, 730763 + ... + 730820.

It is an arithmetic number, because the mean of its divisors is an integer number (10961880).

Almost surely, 2^42385907 is an apocalyptic number.

42385907 is a deficient number, since it is larger than the sum of its proper divisors (1461613).

42385907 is a wasteful number, since it uses less digits than its factorization.

42385907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461612.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 42385907 is about 6510.4459908673. The cubic root of 42385907 is about 348.6640417983.

The spelling of 42385907 in words is "forty-two million, three hundred eighty-five thousand, nine hundred seven".