394384254 has 48 divisors (see below), whose sum is σ = 912656640. Its totient is φ = 113216400.

The previous prime is 394384231. The next prime is 394384259. The reversal of 394384254 is 452483493.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394384259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 502 + ... + 28089.

It is an arithmetic number, because the mean of its divisors is an integer number (19013680).

Almost surely, 2^394384254 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 394384254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (456328320).

394384254 is an abundant number, since it is smaller than the sum of its proper divisors (518272386).

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

394384254 is a wasteful number, since it uses less digits than its factorization.

394384254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28637 (or 28626 counting only the distinct ones).

The product of its digits is 414720, while the sum is 42.

The square root of 394384254 is about 19859.1101009083. The cubic root of 394384254 is about 733.3419387879.

The spelling of 394384254 in words is "three hundred ninety-four million, three hundred eighty-four thousand, two hundred fifty-four".