401423 has 4 divisors (see below), whose sum is σ = 437928. Its totient is φ = 364920.

The previous prime is 401417. The next prime is 401473. The reversal of 401423 is 324104.

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 401423 - 2⁴ = 401407 is a prime.

It is a super-2 number, since 2×401423² = 322280849858, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 401398 and 401407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18236 + ... + 18257.

It is an arithmetic number, because the mean of its divisors is an integer number (109482).

2⁴⁰¹⁴²³ is an apocalyptic number.

401423 is a deficient number, since it is larger than the sum of its proper divisors (36505).

401423 is a wasteful number, since it uses less digits than its factorization.

401423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36504.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 401423 is about 633.5795135577. The cubic root of 401423 is about 73.7678995144.

Adding to 401423 its reverse (324104), we get a palindrome (725527).

The spelling of 401423 in words is "four hundred one thousand, four hundred twenty-three", and thus it is an iban number.