380485018 has 4 divisors (see below), whose sum is σ = 570727530. Its totient is φ = 190242508.

The previous prime is 380485009. The next prime is 380485019. The reversal of 380485018 is 810584083.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 810584083 = 499 ⋅1624417.

It can be written as a sum of positive squares in only one way, i.e., 376631649 + 3853369 = 19407^2 + 1963^2 .

It is not an unprimeable number, because it can be changed into a prime (380485019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95121253 + ... + 95121256.

Almost surely, 2^380485018 is an apocalyptic number.

380485018 is a deficient number, since it is larger than the sum of its proper divisors (190242512).

380485018 is a wasteful number, since it uses less digits than its factorization.

380485018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190242511.

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 380485018 is about 19506.0251717258. The cubic root of 380485018 is about 724.6236765954.

The spelling of 380485018 in words is "three hundred eighty million, four hundred eighty-five thousand, eighteen".