394488535462000 has 480 divisors, whose sum is σ = 1171475859228480. Its totient is φ = 127754197401600.

The previous prime is 394488535461949. The next prime is 394488535462031. The reversal of 394488535462000 is 264535884493.

It is a happy number.

It is a super-2 number, since 2×394488535462000² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 394488535462000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 627179664 + ... + 627808336.

It is an arithmetic number, because the mean of its divisors is an integer number (2440574706726).

Almost surely, 2^{394488535462000} 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 394488535462000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (585737929614240).

394488535462000 is an abundant number, since it is smaller than the sum of its proper divisors (776987323766480).

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

394488535462000 is a wasteful number, since it uses less digits than its factorization.

394488535462000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629066 (or 629043 counting only the distinct ones).

The product of its (nonzero) digits is 99532800, while the sum is 61.

The spelling of 394488535462000 in words is "three hundred ninety-four trillion, four hundred eighty-eight billion, five hundred thirty-five million, four hundred sixty-two thousand".