394605700 has 72 divisors (see below), whose sum is σ = 916394472. Its totient is φ = 146964480.

The previous prime is 394605671. The next prime is 394605713. The reversal of 394605700 is 7506493.

It can be written as a sum of positive squares in 12 ways, for example, as 176570944 + 218034756 = 13288^2 + 14766^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 163704 + ... + 166096.

It is an arithmetic number, because the mean of its divisors is an integer number (12727701).

Almost surely, 2^394605700 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 394605700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (458197236).

394605700 is an abundant number, since it is smaller than the sum of its proper divisors (521788772).

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

394605700 is a wasteful number, since it uses less digits than its factorization.

394605700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2521 (or 2514 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 394605700 is about 19864.6847445410. The cubic root of 394605700 is about 733.4791698021.

The spelling of 394605700 in words is "three hundred ninety-four million, six hundred five thousand, seven hundred".