394039800 has 288 divisors, whose sum is σ = 1650430080. Its totient is φ = 81849600.

The previous prime is 394039783. The next prime is 394039813. The reversal of 394039800 is 8930493.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 137179 + ... + 140021.

It is an arithmetic number, because the mean of its divisors is an integer number (5730660).

Almost surely, 2^394039800 is an apocalyptic number.

394039800 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 394039800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (825215040).

394039800 is an abundant number, since it is smaller than the sum of its proper divisors (1256390280).

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

394039800 is a wasteful number, since it uses less digits than its factorization.

394039800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2883 (or 2871 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 394039800 is about 19850.4357634788. The cubic root of 394039800 is about 733.1283770664.

The spelling of 394039800 in words is "three hundred ninety-four million, thirty-nine thousand, eight hundred".