404305123 has 8 divisors (see below), whose sum is σ = 426198800. Its totient is φ = 382472928.

The previous prime is 404305103. The next prime is 404305127. The reversal of 404305123 is 321503404.

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 404305123 - 2⁵ = 404305091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 404305094 and 404305103.

It is not an unprimeable number, because it can be changed into a prime (404305127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1536 + ... + 28477.

It is an arithmetic number, because the mean of its divisors is an integer number (53274850).

Almost surely, 2^404305123 is an apocalyptic number.

404305123 is a deficient number, since it is larger than the sum of its proper divisors (21893677).

404305123 is a wasteful number, since it uses less digits than its factorization.

404305123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30741.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 404305123 is about 20107.3400279599. The cubic root of 404305123 is about 739.4402407974.

Adding to 404305123 its reverse (321503404), we get a palindrome (725808527).

The spelling of 404305123 in words is "four hundred four million, three hundred five thousand, one hundred twenty-three".