394263362493 has 128 divisors (see below), whose sum is σ = 803367936000. Its totient is φ = 184445683200.

The previous prime is 394263362417. The next prime is 394263362627.

It is a happy number.

394263362493 is a `hidden beast` number, since 3 + 9 + 4 + 2 + 6 + 3 + 3 + 624 + 9 + 3 = 666.

394263362493 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 394263362493 - 2¹³ = 394263354301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394263364493) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 930208 + ... + 1286006.

It is an arithmetic number, because the mean of its divisors is an integer number (6276312000).

Almost surely, 2^394263362493 is an apocalyptic number.

394263362493 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

394263362493 is an abundant number, since it is smaller than the sum of its proper divisors (409104573507).

394263362493 is a wasteful number, since it uses less digits than its factorization.

394263362493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355880 (or 355874 counting only the distinct ones).

The product of its digits is 15116544, while the sum is 54.

The spelling of 394263362493 in words is "three hundred ninety-four billion, two hundred sixty-three million, three hundred sixty-two thousand, four hundred ninety-three".