394075118 has 4 divisors (see below), whose sum is σ = 591112680. Its totient is φ = 197037558.

The previous prime is 394075111. The next prime is 394075133. The reversal of 394075118 is 811570493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 811570493 = 4021 ⋅201833.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394075111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98518778 + ... + 98518781.

It is an arithmetic number, because the mean of its divisors is an integer number (147778170).

Almost surely, 2^394075118 is an apocalyptic number.

394075118 is a deficient number, since it is larger than the sum of its proper divisors (197037562).

394075118 is a wasteful number, since it uses less digits than its factorization.

394075118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197037561.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 394075118 is about 19851.3253461828. The cubic root of 394075118 is about 733.1502799761.

The spelling of 394075118 in words is "three hundred ninety-four million, seventy-five thousand, one hundred eighteen".