406384 has 20 divisors (see below), whose sum is σ = 859320. Its totient is φ = 184640.

The previous prime is 406381. The next prime is 406397. The reversal of 406384 is 483604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 979 + ... + 1330.

It is an arithmetic number, because the mean of its divisors is an integer number (42966).

2⁴⁰⁶³⁸⁴ is an apocalyptic number.

406384 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

406384 is an abundant number, since it is smaller than the sum of its proper divisors (452936).

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

406384 is a wasteful number, since it uses less digits than its factorization.

406384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2328 (or 2322 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 406384 is about 637.4825487807. The cubic root of 406384 is about 74.0705438811.

Adding to 406384 its reverse (483604), we get a palindrome (889988).

The spelling of 406384 in words is "four hundred six thousand, three hundred eighty-four".