394495157 has 8 divisors (see below), whose sum is σ = 474580800. Its totient is φ = 320341824.

The previous prime is 394495151. The next prime is 394495159. The reversal of 394495157 is 751594493.

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

It is not a de Polignac number, because 394495157 - 2⁶ = 394495093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394495151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1482932 + ... + 1483197.

It is an arithmetic number, because the mean of its divisors is an integer number (59322600).

Almost surely, 2^394495157 is an apocalyptic number.

It is an amenable number.

394495157 is a deficient number, since it is larger than the sum of its proper divisors (80085643).

394495157 is a wasteful number, since it uses less digits than its factorization.

394495157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2966155.

The product of its digits is 680400, while the sum is 47.

The square root of 394495157 is about 19861.9021495928. The cubic root of 394495157 is about 733.4106722612.

The spelling of 394495157 in words is "three hundred ninety-four million, four hundred ninety-five thousand, one hundred fifty-seven".