394236994 has 4 divisors (see below), whose sum is σ = 591355494. Its totient is φ = 197118496.

The previous prime is 394236971. The next prime is 394237001. The reversal of 394236994 is 499632493.

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., 382710969 + 11526025 = 19563^2 + 3395^2 .

It is a Smith number, since the sum of its digits (49) 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 polite number, since it can be written as a sum of consecutive naturals, namely, 98559247 + ... + 98559250.

Almost surely, 2^394236994 is an apocalyptic number.

394236994 is a deficient number, since it is larger than the sum of its proper divisors (197118500).

394236994 is a wasteful number, since it uses less digits than its factorization.

394236994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197118499.

The product of its digits is 1259712, while the sum is 49.

The square root of 394236994 is about 19855.4021364464. The cubic root of 394236994 is about 733.2506527078.

The spelling of 394236994 in words is "three hundred ninety-four million, two hundred thirty-six thousand, nine hundred ninety-four".