42394768 has 20 divisors (see below), whose sum is σ = 88458748. Its totient is φ = 19566720.

The previous prime is 42394733. The next prime is 42394769. The reversal of 42394768 is 86749324.

It can be written as a sum of positive squares in 2 ways, for example, as 11614464 + 30780304 = 3408^2 + 5548^2 .

It is not an unprimeable number, because it can be changed into a prime (42394769) 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, 101703 + ... + 102118.

Almost surely, 2^42394768 is an apocalyptic number.

It is an amenable number.

42394768 is an abundant number, since it is smaller than the sum of its proper divisors (46063980).

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

42394768 is a wasteful number, since it uses less digits than its factorization.

42394768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203842 (or 203836 counting only the distinct ones).

The product of its digits is 290304, while the sum is 43.

The square root of 42394768 is about 6511.1264770391. The cubic root of 42394768 is about 348.6883367981.

The spelling of 42394768 in words is "forty-two million, three hundred ninety-four thousand, seven hundred sixty-eight".