394342929 has 24 divisors (see below), whose sum is σ = 615800640. Its totient is φ = 242323488.

The previous prime is 394342913. The next prime is 394342933. The reversal of 394342929 is 929243493.

It is a happy number.

It is not a de Polignac number, because 394342929 - 2⁴ = 394342913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (394342939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24837 + ... + 37490.

It is an arithmetic number, because the mean of its divisors is an integer number (25658360).

Almost surely, 2^394342929 is an apocalyptic number.

It is an amenable number.

394342929 is a deficient number, since it is larger than the sum of its proper divisors (221457711).

394342929 is a wasteful number, since it uses less digits than its factorization.

394342929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62389 (or 62386 counting only the distinct ones).

The product of its digits is 419904, while the sum is 45.

The square root of 394342929 is about 19858.0696191750. The cubic root of 394342929 is about 733.3163238249.

The spelling of 394342929 in words is "three hundred ninety-four million, three hundred forty-two thousand, nine hundred twenty-nine".