394603913088 has 1536 divisors, whose sum is σ = 1553530567680. Its totient is φ = 96745881600.

The previous prime is 394603913083. The next prime is 394603913107. The reversal of 394603913088 is 880319306493.

394603913088 is a `hidden beast` number, since 3 + 94 + 60 + 391 + 30 + 88 = 666.

It is a super-3 number, since 3×394603913088³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394603913083) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 5405533020 + ... + 5405533092.

It is an arithmetic number, because the mean of its divisors is an integer number (1011413130).

Almost surely, 2^394603913088 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 394603913088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (776765283840).

394603913088 is an abundant number, since it is smaller than the sum of its proper divisors (1158926654592).

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

394603913088 is a wasteful number, since it uses less digits than its factorization.

394603913088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The spelling of 394603913088 in words is "three hundred ninety-four billion, six hundred three million, nine hundred thirteen thousand, eighty-eight".