42873438 has 16 divisors (see below), whose sum is σ = 86365440. Its totient is φ = 14188056.

The previous prime is 42873433. The next prime is 42873463. The reversal of 42873438 is 83437824.

42873438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 42873396 and 42873405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42873431) 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, 24870 + ... + 26537.

It is an arithmetic number, because the mean of its divisors is an integer number (5397840).

Almost surely, 2^42873438 is an apocalyptic number.

42873438 is an abundant number, since it is smaller than the sum of its proper divisors (43492002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42873438 is a wasteful number, since it uses less digits than its factorization.

42873438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51551.

The product of its digits is 129024, while the sum is 39.

The square root of 42873438 is about 6547.7811508938. The cubic root of 42873438 is about 349.9957496082.

The spelling of 42873438 in words is "forty-two million, eight hundred seventy-three thousand, four hundred thirty-eight".