392401 has 4 divisors (see below), whose sum is σ = 396900. Its totient is φ = 387904.

The previous prime is 392389. The next prime is 392423. The reversal of 392401 is 104293.

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

It can be written as a sum of positive squares in 2 ways, for example, as 50176 + 342225 = 224^2 + 585^2 .

It is a cyclic number.

It is not a de Polignac number, because 392401 - 2⁹ = 391889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (392101) 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, 2116 + ... + 2293.

It is an arithmetic number, because the mean of its divisors is an integer number (99225).

2³⁹²⁴⁰¹ is an apocalyptic number.

It is an amenable number.

392401 is a deficient number, since it is larger than the sum of its proper divisors (4499).

392401 is an equidigital number, since it uses as much as digits as its factorization.

392401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4498.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 392401 is about 626.4191887227. The cubic root of 392401 is about 73.2110611650.

Adding to 392401 its reverse (104293), we get a palindrome (496694).

It can be divided in two parts, 39 and 2401, that multiplied together give a palindrome (93639).

The spelling of 392401 in words is "three hundred ninety-two thousand, four hundred one".