42073538 has 16 divisors (see below), whose sum is σ = 71963640. Its totient is φ = 18276096.

The previous prime is 42073529. The next prime is 42073547. The reversal of 42073538 is 83537024.

It is a happy number.

42073538 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 (42073529) and next prime (42073547).

It can be written as a sum of positive squares in 4 ways, for example, as 29235649 + 12837889 = 5407^2 + 3583^2 .

It is an unprimeable number.

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, 47153 + ... + 48036.

Almost surely, 2^42073538 is an apocalyptic number.

42073538 is a deficient number, since it is larger than the sum of its proper divisors (29890102).

42073538 is a wasteful number, since it uses less digits than its factorization.

42073538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95221.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 42073538 is about 6486.4117969799. The cubic root of 42073538 is about 347.8054192534.

The spelling of 42073538 in words is "forty-two million, seventy-three thousand, five hundred thirty-eight".