42945814 has 16 divisors (see below), whose sum is σ = 67964400. Its totient is φ = 20296224.

The previous prime is 42945811. The next prime is 42945817. The reversal of 42945814 is 41854924.

42945814 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42945811) and next prime (42945817).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42945811) 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 7 ways as a sum of consecutive naturals, for example, 20152 + ... + 22180.

It is an arithmetic number, because the mean of its divisors is an integer number (4247775).

Almost surely, 2^42945814 is an apocalyptic number.

42945814 is a deficient number, since it is larger than the sum of its proper divisors (25018586).

42945814 is a wasteful number, since it uses less digits than its factorization.

42945814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2607.

The product of its digits is 46080, while the sum is 37.

The square root of 42945814 is about 6553.3055781033. The cubic root of 42945814 is about 350.1925851683.

The spelling of 42945814 in words is "forty-two million, nine hundred forty-five thousand, eight hundred fourteen".