394895860 has 24 divisors (see below), whose sum is σ = 837496296. Its totient is φ = 156393600.

The previous prime is 394895849. The next prime is 394895869. The reversal of 394895860 is 68598493.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 24641296 + 370254564 = 4964^2 + 19242^2 .

It is a junction number, because it is equal to n+sod(n) for n = 394895798 and 394895807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394895869) 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, 95727 + ... + 99766.

It is an arithmetic number, because the mean of its divisors is an integer number (34895679).

Almost surely, 2^394895860 is an apocalyptic number.

It is an amenable number.

394895860 is an abundant number, since it is smaller than the sum of its proper divisors (442600436).

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

394895860 is a wasteful number, since it uses less digits than its factorization.

394895860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195603 (or 195601 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 52.

The square root of 394895860 is about 19871.9868156156. The cubic root of 394895860 is about 733.6589054829.

The spelling of 394895860 in words is "three hundred ninety-four million, eight hundred ninety-five thousand, eight hundred sixty".