938272018 has 4 divisors (see below), whose sum is σ = 1407408030. Its totient is φ = 469136008.

The previous prime is 938271941. The next prime is 938272033. The reversal of 938272018 is 810272839.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 810272839 = 139 ⋅5829301.

It can be written as a sum of positive squares in only one way, i.e., 874798929 + 63473089 = 29577^2 + 7967^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 234568003 + ... + 234568006.

Almost surely, 2^938272018 is an apocalyptic number.

938272018 is a deficient number, since it is larger than the sum of its proper divisors (469136012).

938272018 is a wasteful number, since it uses less digits than its factorization.

938272018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469136011.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 938272018 is about 30631.2261915843. The cubic root of 938272018 is about 978.9854897629.

The spelling of 938272018 in words is "nine hundred thirty-eight million, two hundred seventy-two thousand, eighteen".