393842950 has 12 divisors (see below), whose sum is σ = 732547980. Its totient is φ = 157537160.

The previous prime is 393842921. The next prime is 393842987. The reversal of 393842950 is 59248393.

It is a super-2 number, since 2×393842950² = 310224538529405000, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 393842897 and 393842906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3938380 + ... + 3938479.

It is an arithmetic number, because the mean of its divisors is an integer number (61045665).

Almost surely, 2^393842950 is an apocalyptic number.

393842950 is a deficient number, since it is larger than the sum of its proper divisors (338705030).

393842950 is a wasteful number, since it uses less digits than its factorization.

393842950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7876871 (or 7876866 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 393842950 is about 19845.4768146296. The cubic root of 393842950 is about 733.0062740372.

The spelling of 393842950 in words is "three hundred ninety-three million, eight hundred forty-two thousand, nine hundred fifty".