394466992728 has 32 divisors (see below), whose sum is σ = 986199783360. Its totient is φ = 131484690720.

The previous prime is 394466992709. The next prime is 394466992781. The reversal of 394466992728 is 827299664493.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526851 + ... + 1032717.

It is an arithmetic number, because the mean of its divisors is an integer number (30818743230).

Almost surely, 2^394466992728 is an apocalyptic number.

It is an amenable number.

394466992728 is an abundant number, since it is smaller than the sum of its proper divisors (591732790632).

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

394466992728 is a wasteful number, since it uses less digits than its factorization.

394466992728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538367 (or 538363 counting only the distinct ones).

The product of its digits is 282175488, while the sum is 69.

The spelling of 394466992728 in words is "three hundred ninety-four billion, four hundred sixty-six million, nine hundred ninety-two thousand, seven hundred twenty-eight".