42849438 has 8 divisors (see below), whose sum is σ = 85698888. Its totient is φ = 14283144.

The previous prime is 42849413. The next prime is 42849451. The reversal of 42849438 is 83494824.

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

42849438 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 42849438.

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, 3570781 + ... + 3570792.

It is an arithmetic number, because the mean of its divisors is an integer number (10712361).

Almost surely, 2^42849438 is an apocalyptic number.

42849438 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.

42849438 is a wasteful number, since it uses less digits than its factorization.

42849438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7141578.

The product of its digits is 221184, while the sum is 42.

The square root of 42849438 is about 6545.9482124441. The cubic root of 42849438 is about 349.9304297097.

The spelling of 42849438 in words is "forty-two million, eight hundred forty-nine thousand, four hundred thirty-eight".