394074470493 has 64 divisors (see below), whose sum is σ = 644908400640. Its totient is φ = 235843747200.

The previous prime is 394074470473. The next prime is 394074470497.

394074470493 is a `hidden beast` number, since 3 + 9 + 40 + 7 + 44 + 70 + 493 = 666.

394074470493 is nontrivially palindromic in base 10.

394074470493 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 394074470493 - 2⁶ = 394074470429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394074470497) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7746246 + ... + 7796952.

It is an arithmetic number, because the mean of its divisors is an integer number (10076693760).

Almost surely, 2^394074470493 is an apocalyptic number.

394074470493 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

394074470493 is a deficient number, since it is larger than the sum of its proper divisors (250833930147).

394074470493 is a wasteful number, since it uses less digits than its factorization.

394074470493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51055 (or 51049 counting only the distinct ones).

The product of its (nonzero) digits is 9144576, while the sum is 54.

The spelling of 394074470493 in words is "three hundred ninety-four billion, seventy-four million, four hundred seventy thousand, four hundred ninety-three".