42138334 has 24 divisors (see below), whose sum is σ = 76067640. Its totient is φ = 17435376.

The previous prime is 42138319. The next prime is 42138347. The reversal of 42138334 is 43383124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4572 + ... + 10255.

It is an arithmetic number, because the mean of its divisors is an integer number (3169485).

Almost surely, 2^42138334 is an apocalyptic number.

42138334 is a deficient number, since it is larger than the sum of its proper divisors (33929306).

42138334 is a wasteful number, since it uses less digits than its factorization.

42138334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14872 (or 14865 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The square root of 42138334 is about 6491.4046245786. The cubic root of 42138334 is about 347.9838753704.

The spelling of 42138334 in words is "forty-two million, one hundred thirty-eight thousand, three hundred thirty-four".