394288882493 has 16 divisors (see below), whose sum is σ = 472457664000. Its totient is φ = 324814636080.

The previous prime is 394288882483. The next prime is 394288882499.

394288882493 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 394288882493 - 2¹² = 394288878397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394288882499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41007143 + ... + 41016756.

It is an arithmetic number, because the mean of its divisors is an integer number (29528604000).

Almost surely, 2^394288882493 is an apocalyptic number.

It is an amenable number.

394288882493 is a deficient number, since it is larger than the sum of its proper divisors (78168781507).

394288882493 is a wasteful number, since it uses less digits than its factorization.

394288882493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82023952.

The product of its digits is 191102976, while the sum is 68.

The spelling of 394288882493 in words is "three hundred ninety-four billion, two hundred eighty-eight million, eight hundred eighty-two thousand, four hundred ninety-three".