42794018 has 4 divisors (see below), whose sum is σ = 64191030. Its totient is φ = 21397008.

The previous prime is 42794009. The next prime is 42794029. The reversal of 42794018 is 81049724.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 38725729 + 4068289 = 6223^2 + 2017^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10698503 + ... + 10698506.

Almost surely, 2^42794018 is an apocalyptic number.

42794018 is a deficient number, since it is larger than the sum of its proper divisors (21397012).

42794018 is a wasteful number, since it uses less digits than its factorization.

42794018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21397011.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 42794018 is about 6541.7136898522. The cubic root of 42794018 is about 349.7795019329.

The spelling of 42794018 in words is "forty-two million, seven hundred ninety-four thousand, eighteen".