394093629 has 12 divisors (see below), whose sum is σ = 569662236. Its totient is φ = 262537152.

The previous prime is 394093619. The next prime is 394093663. The reversal of 394093629 is 926390493.

It can be written as a sum of positive squares in 2 ways, for example, as 166023225 + 228070404 = 12885^2 + 15102^2 .

It is not a de Polignac number, because 394093629 - 2⁴ = 394093613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394093619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2382 + ... + 28175.

It is an arithmetic number, because the mean of its divisors is an integer number (47471853).

Almost surely, 2^394093629 is an apocalyptic number.

It is an amenable number.

394093629 is a deficient number, since it is larger than the sum of its proper divisors (175568607).

394093629 is a wasteful number, since it uses less digits than its factorization.

394093629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31996 (or 31993 counting only the distinct ones).

The product of its (nonzero) digits is 314928, while the sum is 45.

The square root of 394093629 is about 19851.7915816180. The cubic root of 394093629 is about 733.1617592870.

The spelling of 394093629 in words is "three hundred ninety-four million, ninety-three thousand, six hundred twenty-nine".