42508038 has 16 divisors (see below), whose sum is σ = 85797360. Its totient is φ = 14039136.

The previous prime is 42507991. The next prime is 42508049. The reversal of 42508038 is 83080524.

It is a junction number, because it is equal to n+sod(n) for n = 42507996 and 42508014.

It is a congruent number.

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 in 7 ways as a sum of consecutive naturals, for example, 31845 + ... + 33152.

It is an arithmetic number, because the mean of its divisors is an integer number (5362335).

Almost surely, 2^42508038 is an apocalyptic number.

42508038 is an abundant number, since it is smaller than the sum of its proper divisors (43289322).

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

42508038 is a wasteful number, since it uses less digits than its factorization.

42508038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65111.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 42508038 is about 6519.8188625145. The cubic root of 42508038 is about 348.9986015384.

The spelling of 42508038 in words is "forty-two million, five hundred eight thousand, thirty-eight".