42730367 has 4 divisors (see below), whose sum is σ = 45243936. Its totient is φ = 40216800.

The previous prime is 42730357. The next prime is 42730403. The reversal of 42730367 is 76303724.

42730367 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 a de Polignac number, because none of the positive numbers 2^k-42730367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42730327) 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, 1256759 + ... + 1256792.

It is an arithmetic number, because the mean of its divisors is an integer number (11310984).

Almost surely, 2^42730367 is an apocalyptic number.

42730367 is a deficient number, since it is larger than the sum of its proper divisors (2513569).

42730367 is a wasteful number, since it uses less digits than its factorization.

42730367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2513568.

The product of its (nonzero) digits is 21168, while the sum is 32.

The square root of 42730367 is about 6536.8468698601. The cubic root of 42730367 is about 349.6059974456.

The spelling of 42730367 in words is "forty-two million, seven hundred thirty thousand, three hundred sixty-seven".