394636146 has 32 divisors (see below), whose sum is σ = 800280000. Its totient is φ = 129719040.

The previous prime is 394636141. The next prime is 394636159. The reversal of 394636146 is 641636493.

It is a junction number, because it is equal to n+sod(n) for n = 394636098 and 394636107.

It is not an unprimeable number, because it can be changed into a prime (394636141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265726 + ... + 267206.

It is an arithmetic number, because the mean of its divisors is an integer number (25008750).

Almost surely, 2^394636146 is an apocalyptic number.

394636146 is an abundant number, since it is smaller than the sum of its proper divisors (405643854).

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

394636146 is a wasteful number, since it uses less digits than its factorization.

394636146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2074.

The product of its digits is 279936, while the sum is 42.

The square root of 394636146 is about 19865.4510645996. The cubic root of 394636146 is about 733.4980333010.

The spelling of 394636146 in words is "three hundred ninety-four million, six hundred thirty-six thousand, one hundred forty-six".