404450123031 has 24 divisors (see below), whose sum is σ = 586934599680. Its totient is φ = 268375035600.

The previous prime is 404450123017. The next prime is 404450123047. The reversal of 404450123031 is 130321054404.

It is a happy number.

It is not a de Polignac number, because 404450123031 - 2⁹ = 404450122519 is a prime.

It is a super-2 number, since 2×404450123031² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 404450122986 and 404450123004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404450123071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4496226 + ... + 4585296.

It is an arithmetic number, because the mean of its divisors is an integer number (24455608320).

Almost surely, 2^404450123031 is an apocalyptic number.

404450123031 is a deficient number, since it is larger than the sum of its proper divisors (182484476649).

404450123031 is a wasteful number, since it uses less digits than its factorization.

404450123031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91427 (or 91424 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 404450123031 its reverse (130321054404), we get a palindrome (534771177435).

The spelling of 404450123031 in words is "four hundred four billion, four hundred fifty million, one hundred twenty-three thousand, thirty-one".