394368912000 has 1280 divisors, whose sum is σ = 1732816800000. Its totient is φ = 86975078400.

The previous prime is 394368911987. The next prime is 394368912037. The reversal of 394368912000 is 219863493.

It is a happy number.

394368912000 is a `hidden beast` number, since 3 + 9 + 436 + 8 + 9 + 1 + 200 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 263087251 + ... + 263088749.

It is an arithmetic number, because the mean of its divisors is an integer number (1353763125).

Almost surely, 2^394368912000 is an apocalyptic number.

394368912000 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 394368912000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (866408400000).

394368912000 is an abundant number, since it is smaller than the sum of its proper divisors (1338447888000).

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

394368912000 is a wasteful number, since it uses less digits than its factorization.

394368912000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1576 (or 1545 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The spelling of 394368912000 in words is "three hundred ninety-four billion, three hundred sixty-eight million, nine hundred twelve thousand".