394881413760 has 192 divisors, whose sum is σ = 1422861223680. Its totient is φ = 100723341312.

The previous prime is 394881413753. The next prime is 394881413761. The reversal of 394881413760 is 67314188493.

394881413760 is a `hidden beast` number, since 3 + 94 + 8 + 81 + 413 + 7 + 60 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a junction number, because it is equal to n+sod(n) for n = 394881413697 and 394881413706.

It is not an unprimeable number, because it can be changed into a prime (394881413761) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1357864 + ... + 1622823.

It is an arithmetic number, because the mean of its divisors is an integer number (7410735540).

Almost surely, 2^394881413760 is an apocalyptic number.

394881413760 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

394881413760 is an abundant number, since it is smaller than the sum of its proper divisors (1027979809920).

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

394881413760 is a wasteful number, since it uses less digits than its factorization.

394881413760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2980735 (or 2980720 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 394881413760 in words is "three hundred ninety-four billion, eight hundred eighty-one million, four hundred thirteen thousand, seven hundred sixty".