400230423 has 16 divisors (see below), whose sum is σ = 593682400. Its totient is φ = 266483520.

The previous prime is 400230409. The next prime is 400230431. The reversal of 400230423 is 324032004.

It is not a de Polignac number, because 400230423 - 2⁴ = 400230407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 400230396 and 400230405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400230403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13443 + ... + 31323.

It is an arithmetic number, because the mean of its divisors is an integer number (37105150).

Almost surely, 2^400230423 is an apocalyptic number.

400230423 is a deficient number, since it is larger than the sum of its proper divisors (193451977).

400230423 is a wasteful number, since it uses less digits than its factorization.

400230423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18719 (or 18713 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 400230423 is about 20005.7597456333. The cubic root of 400230423 is about 736.9477535014.

Adding to 400230423 its reverse (324032004), we get a palindrome (724262427).

The spelling of 400230423 in words is "four hundred million, two hundred thirty thousand, four hundred twenty-three".