394022623903 has 8 divisors (see below), whose sum is σ = 418636926720. Its totient is φ = 369795948120.

The previous prime is 394022623871. The next prime is 394022623937. The reversal of 394022623903 is 309326220493.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 394022623903 - 2⁵ = 394022623871 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 394022623903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394022623003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96904663 + ... + 96908728.

It is an arithmetic number, because the mean of its divisors is an integer number (52329615840).

Almost surely, 2^394022623903 is an apocalyptic number.

394022623903 is a deficient number, since it is larger than the sum of its proper divisors (24614302817).

394022623903 is a wasteful number, since it uses less digits than its factorization.

394022623903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193813517.

The product of its (nonzero) digits is 419904, while the sum is 43.

The spelling of 394022623903 in words is "three hundred ninety-four billion, twenty-two million, six hundred twenty-three thousand, nine hundred three".