394094004 has 24 divisors (see below), whose sum is σ = 932151360. Its totient is φ = 129564864.

The previous prime is 394094003. The next prime is 394094023. The reversal of 394094004 is 400490493.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394094003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224064 + ... + 225815.

It is an arithmetic number, because the mean of its divisors is an integer number (38839640).

Almost surely, 2^394094004 is an apocalyptic number.

It is an amenable number.

394094004 is an abundant number, since it is smaller than the sum of its proper divisors (538057356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

394094004 is a wasteful number, since it uses less digits than its factorization.

394094004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449959 (or 449957 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 394094004 is about 19851.8010266071. The cubic root of 394094004 is about 733.1619918337.

The spelling of 394094004 in words is "three hundred ninety-four million, ninety-four thousand, four".