394904483357440 has 108 divisors (see below), whose sum is σ = 1100355505922736. Its totient is φ = 135395822843904.

The previous prime is 394904483357431. The next prime is 394904483357441. The reversal of 394904483357440 is 44753384409493.

It is not an unprimeable number, because it can be changed into a prime (394904483357441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3148091644 + ... + 3148217083.

It is an arithmetic number, because the mean of its divisors is an integer number (10188476906692).

Almost surely, 2^{394904483357440} is an apocalyptic number.

It is an amenable number.

394904483357440 is an abundant number, since it is smaller than the sum of its proper divisors (705451022565296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

394904483357440 is an equidigital number, since it uses as much as digits as its factorization.

394904483357440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6296308762 (or 6296308741 counting only the distinct ones).

The product of its (nonzero) digits is 627056640, while the sum is 67.

The spelling of 394904483357440 in words is "three hundred ninety-four trillion, nine hundred four billion, four hundred eighty-three million, three hundred fifty-seven thousand, four hundred forty".