394164942 has 8 divisors (see below), whose sum is σ = 788329896. Its totient is φ = 131388312.

The previous prime is 394164929. The next prime is 394164943. The reversal of 394164942 is 249461493.

It is a sphenic number, since it is the product of 3 distinct primes.

394164942 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 394164894 and 394164903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394164943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32847073 + ... + 32847084.

It is an arithmetic number, because the mean of its divisors is an integer number (98541237).

Almost surely, 2^394164942 is an apocalyptic number.

394164942 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

394164942 is a wasteful number, since it uses less digits than its factorization.

394164942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65694162.

The product of its digits is 186624, while the sum is 42.

The square root of 394164942 is about 19853.5876354879. The cubic root of 394164942 is about 733.2059795833.

The spelling of 394164942 in words is "three hundred ninety-four million, one hundred sixty-four thousand, nine hundred forty-two".