394920036000 has 1920 divisors, whose sum is σ = 1764488613888. Its totient is φ = 84602880000.

The previous prime is 394920035971. The next prime is 394920036013. The reversal of 394920036000 is 630029493.

It is a happy number.

394920036000 is a `hidden beast` number, since 3 + 9 + 49 + 2 + 0 + 0 + 3 + 600 + 0 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 2882627932 + ... + 2882628068.

Almost surely, 2^394920036000 is an apocalyptic number.

394920036000 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 394920036000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (882244306944).

394920036000 is an abundant number, since it is smaller than the sum of its proper divisors (1369568577888).

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

394920036000 is a wasteful number, since it uses less digits than its factorization.

394920036000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The spelling of 394920036000 in words is "three hundred ninety-four billion, nine hundred twenty million, thirty-six thousand".