394476687360 has 1560 divisors, whose sum is σ = 1724628286656. Its totient is φ = 85837086720.

The previous prime is 394476687313. The next prime is 394476687373. The reversal of 394476687360 is 63786674493.

394476687360 is a `hidden beast` number, since 3 + 9 + 447 + 6 + 68 + 73 + 60 = 666.

It is a super-2 number, since 2×394476687360² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 1869557655 + ... + 1869557865.

Almost surely, 2^394476687360 is an apocalyptic number.

394476687360 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 394476687360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (862314143328).

394476687360 is an abundant number, since it is smaller than the sum of its proper divisors (1330151599296).

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

394476687360 is a wasteful number, since it uses less digits than its factorization.

394476687360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 109734912, while the sum is 63.

The spelling of 394476687360 in words is "three hundred ninety-four billion, four hundred seventy-six million, six hundred eighty-seven thousand, three hundred sixty".