394224630 has 16 divisors (see below), whose sum is σ = 946139184. Its totient is φ = 105126560.

The previous prime is 394224617. The next prime is 394224631. The reversal of 394224630 is 36422493.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 394224591 and 394224600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394224631) 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, 6570381 + ... + 6570440.

It is an arithmetic number, because the mean of its divisors is an integer number (59133699).

Almost surely, 2^394224630 is an apocalyptic number.

394224630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

394224630 is an abundant number, since it is smaller than the sum of its proper divisors (551914554).

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

394224630 is a wasteful number, since it uses less digits than its factorization.

394224630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13140831.

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 394224630 is about 19855.0907829705. The cubic root of 394224630 is about 733.2429872629.

The spelling of 394224630 in words is "three hundred ninety-four million, two hundred twenty-four thousand, six hundred thirty".