394611051438 has 12 divisors (see below), whose sum is σ = 854990611488. Its totient is φ = 131537017140.

The previous prime is 394611051437. The next prime is 394611051463. The reversal of 394611051438 is 834150116493.

394611051438 is a `hidden beast` number, since 3 + 94 + 6 + 1 + 10 + 514 + 38 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 394611051393 and 394611051402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394611051437) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10961418078 + ... + 10961418113.

It is an arithmetic number, because the mean of its divisors is an integer number (71249217624).

Almost surely, 2^394611051438 is an apocalyptic number.

394611051438 is an abundant number, since it is smaller than the sum of its proper divisors (460379560050).

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

394611051438 is a wasteful number, since it uses less digits than its factorization.

394611051438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21922836199 (or 21922836196 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 394611051438 in words is "three hundred ninety-four billion, six hundred eleven million, fifty-one thousand, four hundred thirty-eight".