404200123 has 8 divisors (see below), whose sum is σ = 409522176. Its totient is φ = 398889000.

The previous prime is 404200087. The next prime is 404200133. The reversal of 404200123 is 321002404.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 404200123 - 2⁹ = 404199611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404200097 and 404200106.

It is not an unprimeable number, because it can be changed into a prime (404200133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93418 + ... + 97648.

It is an arithmetic number, because the mean of its divisors is an integer number (51190272).

Almost surely, 2^404200123 is an apocalyptic number.

404200123 is a deficient number, since it is larger than the sum of its proper divisors (5322053).

404200123 is a wasteful number, since it uses less digits than its factorization.

404200123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5465.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 404200123 is about 20104.7288715864. The cubic root of 404200123 is about 739.3762231837.

Adding to 404200123 its reverse (321002404), we get a palindrome (725202527).

The spelling of 404200123 in words is "four hundred four million, two hundred thousand, one hundred twenty-three".