405376 has 16 divisors (see below), whose sum is σ = 807840. Its totient is φ = 202624.

The previous prime is 405373. The next prime is 405401. The reversal of 405376 is 673504.

It is a tau number, because it is divible by the number of its divisors (16).

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 405376.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1456 + ... + 1711.

It is an arithmetic number, because the mean of its divisors is an integer number (50490).

2⁴⁰⁵³⁷⁶ is an apocalyptic number.

It is an amenable number.

405376 is a deficient number, since it is larger than the sum of its proper divisors (402464).

405376 is an equidigital number, since it uses as much as digits as its factorization.

405376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3181 (or 3169 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 405376 is about 636.6914480343. The cubic root of 405376 is about 74.0092513391.

The spelling of 405376 in words is "four hundred five thousand, three hundred seventy-six".