394090412 has 12 divisors (see below), whose sum is σ = 689855376. Its totient is φ = 196988880.

The previous prime is 394090373. The next prime is 394090421. The reversal of 394090412 is 214090493.

It is a happy number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4337 + ... + 28407.

It is an arithmetic number, because the mean of its divisors is an integer number (57487948).

Almost surely, 2^394090412 is an apocalyptic number.

It is an amenable number.

394090412 is a deficient number, since it is larger than the sum of its proper divisors (295764964).

394090412 is a wasteful number, since it uses less digits than its factorization.

394090412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28168 (or 28166 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 394090412 is about 19851.7105560201. The cubic root of 394090412 is about 733.1597643399.

The spelling of 394090412 in words is "three hundred ninety-four million, ninety thousand, four hundred twelve".