394160994 has 24 divisors (see below), whose sum is σ = 854773452. Its totient is φ = 131270400.

The previous prime is 394160989. The next prime is 394160999. The reversal of 394160994 is 499061493.

394160994 is a `hidden beast` number, since 39 + 4 + 1 + 609 + 9 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (394160989) and next prime (394160999).

It can be written as a sum of positive squares in 2 ways, for example, as 358913025 + 35247969 = 18945^2 + 5937^2 .

It is not an unprimeable number, because it can be changed into a prime (394160999) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12502 + ... + 30734.

Almost surely, 2^394160994 is an apocalyptic number.

394160994 is an abundant number, since it is smaller than the sum of its proper divisors (460612458).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

394160994 is a wasteful number, since it uses less digits than its factorization.

394160994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19442 (or 19439 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 394160994 is about 19853.4882073655. The cubic root of 394160994 is about 733.2035316175.

The spelling of 394160994 in words is "three hundred ninety-four million, one hundred sixty thousand, nine hundred ninety-four".