394899650 has 24 divisors (see below), whose sum is σ = 766450944. Its totient is φ = 151091600.

The previous prime is 394899649. The next prime is 394899677. The reversal of 394899650 is 56998493.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 394899592 and 394899601.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170546 + ... + 172845.

It is an arithmetic number, because the mean of its divisors is an integer number (31935456).

Almost surely, 2^394899650 is an apocalyptic number.

394899650 is a deficient number, since it is larger than the sum of its proper divisors (371551294).

394899650 is a wasteful number, since it uses less digits than its factorization.

394899650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343426 (or 343421 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 53.

The square root of 394899650 is about 19872.0821757560. The cubic root of 394899650 is about 733.6612525644.

The spelling of 394899650 in words is "three hundred ninety-four million, eight hundred ninety-nine thousand, six hundred fifty".