368405 has 4 divisors (see below), whose sum is σ = 442092. Its totient is φ = 294720.

The previous prime is 368399. The next prime is 368411. The reversal of 368405 is 504863.

368405 is nontrivially palindromic in base 14.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (368399) and next prime (368411).

It can be written as a sum of positive squares in 2 ways, for example, as 78961 + 289444 = 281^2 + 538^2 .

It is not a de Polignac number, because 368405 - 2⁸ = 368149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 368405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36836 + ... + 36845.

It is an arithmetic number, because the mean of its divisors is an integer number (110523).

2³⁶⁸⁴⁰⁵ is an apocalyptic number.

It is an amenable number.

368405 is a deficient number, since it is larger than the sum of its proper divisors (73687).

368405 is an equidigital number, since it uses as much as digits as its factorization.

368405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73686.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 368405 is about 606.9637550958. The cubic root of 368405 is about 71.6872364487.

The spelling of 368405 in words is "three hundred sixty-eight thousand, four hundred five".