42394438 has 8 divisors (see below), whose sum is σ = 64306440. Its totient is φ = 20958960.

The previous prime is 42394421. The next prime is 42394459. The reversal of 42394438 is 83449324.

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

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 42394397 and 42394406.

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, 118908 + ... + 119263.

It is an arithmetic number, because the mean of its divisors is an integer number (8038305).

Almost surely, 2^42394438 is an apocalyptic number.

42394438 is a deficient number, since it is larger than the sum of its proper divisors (21912002).

42394438 is a wasteful number, since it uses less digits than its factorization.

42394438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238262.

The product of its digits is 82944, while the sum is 37.

The square root of 42394438 is about 6511.1011357527. The cubic root of 42394438 is about 348.6874320681.

The spelling of 42394438 in words is "forty-two million, three hundred ninety-four thousand, four hundred thirty-eight".