42238038 has 8 divisors (see below), whose sum is σ = 84476088. Its totient is φ = 14079344.

The previous prime is 42237989. The next prime is 42238039. The reversal of 42238038 is 83083224.

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

42238038 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 42237996 and 42238014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42238039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3519831 + ... + 3519842.

It is an arithmetic number, because the mean of its divisors is an integer number (10559511).

Almost surely, 2^42238038 is an apocalyptic number.

42238038 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42238038 is a wasteful number, since it uses less digits than its factorization.

42238038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7039678.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 42238038 is about 6499.0797810152. The cubic root of 42238038 is about 348.2581154154.

The spelling of 42238038 in words is "forty-two million, two hundred thirty-eight thousand, thirty-eight".