42075898 has 4 divisors (see below), whose sum is σ = 63113850. Its totient is φ = 21037948.

The previous prime is 42075871. The next prime is 42075941. The reversal of 42075898 is 89857024.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 32913169 + 9162729 = 5737^2 + 3027^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10518973 + ... + 10518976.

Almost surely, 2^42075898 is an apocalyptic number.

42075898 is a deficient number, since it is larger than the sum of its proper divisors (21037952).

42075898 is a wasteful number, since it uses less digits than its factorization.

42075898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21037951.

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 42075898 is about 6486.5937131903. The cubic root of 42075898 is about 347.8119221963.

The spelling of 42075898 in words is "forty-two million, seventy-five thousand, eight hundred ninety-eight".