394000492 has 48 divisors (see below), whose sum is σ = 741888000. Its totient is φ = 182542464.

The previous prime is 394000469. The next prime is 394000493. The reversal of 394000492 is 294000493.

It is not an unprimeable number, because it can be changed into a prime (394000493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 822309 + ... + 822787.

It is an arithmetic number, because the mean of its divisors is an integer number (15456000).

Almost surely, 2^394000492 is an apocalyptic number.

It is an amenable number.

394000492 is a deficient number, since it is larger than the sum of its proper divisors (347887508).

394000492 is a wasteful number, since it uses less digits than its factorization.

394000492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718 (or 716 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 394000492 is about 19849.4456345763. The cubic root of 394000492 is about 733.1039981682.

Subtracting from 394000492 its reverse (294000493), we obtain a palindrome (99999999).

The spelling of 394000492 in words is "three hundred ninety-four million, four hundred ninety-two", and thus it is an aban number.