394450560000 has 1100 divisors, whose sum is σ = 1683732633088. Its totient is φ = 90077184000.

The previous prime is 394450559957. The next prime is 394450560001. The reversal of 394450560000 is 65054493.

It is a happy number.

394450560000 is a `hidden beast` number, since 3 + 9 + 4 + 45 + 0 + 5 + 600 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394450560001) by changing a digit.

It is a polite number, since it can be written in 99 ways as a sum of consecutive naturals, for example, 362879457 + ... + 362880543.

Almost surely, 2^394450560000 is an apocalyptic number.

394450560000 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 394450560000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (841866316544).

394450560000 is an abundant number, since it is smaller than the sum of its proper divisors (1289282073088).

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

394450560000 is an equidigital number, since it uses as much as digits as its factorization.

394450560000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146 (or 1104 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 394450560000 in words is "three hundred ninety-four billion, four hundred fifty million, five hundred sixty thousand".