394022750497 has 8 divisors (see below), whose sum is σ = 403557034496. Its totient is φ = 384505328592.

The previous prime is 394022750479. The next prime is 394022750503. The reversal of 394022750497 is 794057220493.

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 394022750497 - 2⁷ = 394022750369 is a prime.

It is a super-2 number, since 2×394022750497² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (394022750417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4168218 + ... + 4261699.

It is an arithmetic number, because the mean of its divisors is an integer number (50444629312).

Almost surely, 2^394022750497 is an apocalyptic number.

It is an amenable number.

394022750497 is a deficient number, since it is larger than the sum of its proper divisors (9534283999).

394022750497 is a wasteful number, since it uses less digits than its factorization.

394022750497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8431047.

The product of its (nonzero) digits is 3810240, while the sum is 52.

The spelling of 394022750497 in words is "three hundred ninety-four billion, twenty-two million, seven hundred fifty thousand, four hundred ninety-seven".