42838384 has 20 divisors (see below), whose sum is σ = 83275920. Its totient is φ = 21347840.

The previous prime is 42838381. The next prime is 42838387. The reversal of 42838384 is 48383824.

It is an interprime number because it is at equal distance from previous prime (42838381) and next prime (42838387).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42838381) 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, 672 + ... + 9280.

It is an arithmetic number, because the mean of its divisors is an integer number (4163796).

Almost surely, 2^42838384 is an apocalyptic number.

It is an amenable number.

42838384 is a deficient number, since it is larger than the sum of its proper divisors (40437536).

42838384 is a wasteful number, since it uses less digits than its factorization.

42838384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8928 (or 8922 counting only the distinct ones).

The product of its digits is 147456, while the sum is 40.

The square root of 42838384 is about 6545.1038188863. The cubic root of 42838384 is about 349.9003362489.

The spelling of 42838384 in words is "forty-two million, eight hundred thirty-eight thousand, three hundred eighty-four".