394470 has 40 divisors (see below), whose sum is σ = 1062864. Its totient is φ = 104976.

The previous prime is 394453. The next prime is 394481. The reversal of 394470 is 74493.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a nialpdrome in base 9.

It is a zygodrome in base 9.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 567 + ... + 1053.

2³⁹⁴⁴⁷⁰ is an apocalyptic number.

394470 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 394470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (531432).

394470 is an abundant number, since it is smaller than the sum of its proper divisors (668394).

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

394470 is a wasteful number, since it uses less digits than its factorization.

394470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 506 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 394470 is about 628.0684676052. The cubic root of 394470 is about 73.3395082036.

The spelling of 394470 in words is "three hundred ninety-four thousand, four hundred seventy".