394248238848 has 504 divisors, whose sum is σ = 1255148631072. Its totient is φ = 123259428864.

The previous prime is 394248238843. The next prime is 394248238849. The reversal of 394248238848 is 848832842493.

394248238848 is a `hidden beast` number, since 3 + 9 + 4 + 248 + 2 + 388 + 4 + 8 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394248238843) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 227493790 + ... + 227495522.

It is an arithmetic number, because the mean of its divisors is an integer number (2490374268).

Almost surely, 2^394248238848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 394248238848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (627574315536).

394248238848 is an abundant number, since it is smaller than the sum of its proper divisors (860900392224).

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

394248238848 is an equidigital number, since it uses as much as digits as its factorization.

394248238848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1843 (or 1814 counting only the distinct ones).

The product of its digits is 84934656, while the sum is 63.

The spelling of 394248238848 in words is "three hundred ninety-four billion, two hundred forty-eight million, two hundred thirty-eight thousand, eight hundred forty-eight".