42000838 has 8 divisors (see below), whose sum is σ = 68728680. Its totient is φ = 19091280.

The previous prime is 42000821. The next prime is 42000841. The reversal of 42000838 is 83800024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 954543 + ... + 954586.

It is an arithmetic number, because the mean of its divisors is an integer number (8591085).

Almost surely, 2^42000838 is an apocalyptic number.

42000838 is a deficient number, since it is larger than the sum of its proper divisors (26727842).

42000838 is a wasteful number, since it uses less digits than its factorization.

42000838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909142.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 42000838 is about 6480.8053511890. The cubic root of 42000838 is about 347.6049763069.

The spelling of 42000838 in words is "forty-two million, eight hundred thirty-eight", and thus it is an aban number.