394381234 has 8 divisors (see below), whose sum is σ = 637077420. Its totient is φ = 182022096.

The previous prime is 394381219. The next prime is 394381241. The reversal of 394381234 is 432183493.

It can be written as a sum of positive squares in 2 ways, for example, as 351675009 + 42706225 = 18753^2 + 6535^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 394381193 and 394381202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7584229 + ... + 7584280.

Almost surely, 2^394381234 is an apocalyptic number.

394381234 is a deficient number, since it is larger than the sum of its proper divisors (242696186).

394381234 is a wasteful number, since it uses less digits than its factorization.

394381234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15168524.

The product of its digits is 62208, while the sum is 37.

The square root of 394381234 is about 19859.0340651302. The cubic root of 394381234 is about 733.3400669262.

The spelling of 394381234 in words is "three hundred ninety-four million, three hundred eighty-one thousand, two hundred thirty-four".