42378713 has 8 divisors (see below), whose sum is σ = 46387656. Its totient is φ = 38476800.

The previous prime is 42378703. The next prime is 42378751. The reversal of 42378713 is 31787324.

42378713 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 24649 + 42354064 = 157^2 + 6508^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42378713 - 2⁶ = 42378649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42378703) 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, 25928 + ... + 27513.

It is an arithmetic number, because the mean of its divisors is an integer number (5798457).

Almost surely, 2^42378713 is an apocalyptic number.

It is an amenable number.

42378713 is a deficient number, since it is larger than the sum of its proper divisors (4008943).

42378713 is a wasteful number, since it uses less digits than its factorization.

42378713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53515.

The product of its digits is 28224, while the sum is 35.

The square root of 42378713 is about 6509.8934707106. The cubic root of 42378713 is about 348.6443148716.

The spelling of 42378713 in words is "forty-two million, three hundred seventy-eight thousand, seven hundred thirteen".