394380 has 72 divisors (see below), whose sum is σ = 1371552. Its totient is φ = 89856.

The previous prime is 394369. The next prime is 394393. The reversal of 394380 is 83493.

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, 1104 + ... + 1416.

2³⁹⁴³⁸⁰ is an apocalyptic number.

394380 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 394380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (685776).

394380 is an abundant number, since it is smaller than the sum of its proper divisors (977172).

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

394380 is a wasteful number, since it uses less digits than its factorization.

394380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 394380 is about 627.9968152785. The cubic root of 394380 is about 73.3339302063. Note that the first 3 decimals are identical.

It can be divided in two parts, 39 and 4380, that multiplied together give a triangular number (170820 = T₅₈₄).

The spelling of 394380 in words is "three hundred ninety-four thousand, three hundred eighty".