402323 has 4 divisors (see below), whose sum is σ = 409968. Its totient is φ = 394680.

The previous prime is 402313. The next prime is 402329. The reversal of 402323 is 323204.

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

It is a cyclic number.

It is not a de Polignac number, because 402323 - 2⁴ = 402307 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 402298 and 402307.

It is not an unprimeable number, because it can be changed into a prime (402329) 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, 3743 + ... + 3848.

It is an arithmetic number, because the mean of its divisors is an integer number (102492).

2⁴⁰²³²³ is an apocalyptic number.

402323 is a deficient number, since it is larger than the sum of its proper divisors (7645).

402323 is an equidigital number, since it uses as much as digits as its factorization.

402323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7644.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 402323 is about 634.2893661414. The cubic root of 402323 is about 73.8229881652.

Adding to 402323 its reverse (323204), we get a palindrome (725527).

It can be divided in two parts, 4023 and 23, that multiplied together give a palindrome (92529).

The spelling of 402323 in words is "four hundred two thousand, three hundred twenty-three", and thus it is an iban number.