423044456805 has 32 divisors (see below), whose sum is σ = 758000947200. Its totient is φ = 223847136576.

The previous prime is 423044456743. The next prime is 423044456831. The reversal of 423044456805 is 508654440324.

423044456805 is a `hidden beast` number, since 42 + 3 + 0 + 4 + 44 + 568 + 0 + 5 = 666.

It is not a de Polignac number, because 423044456805 - 2⁶ = 423044456741 is a prime.

It is a super-2 number, since 2×423044456805² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12320110 + ... + 12354399.

It is an arithmetic number, because the mean of its divisors is an integer number (23687529600).

Almost surely, 2^423044456805 is an apocalyptic number.

423044456805 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

423044456805 is a deficient number, since it is larger than the sum of its proper divisors (334956490395).

423044456805 is a wasteful number, since it uses less digits than its factorization.

423044456805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24674650 (or 24674644 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 45.

The spelling of 423044456805 in words is "four hundred twenty-three billion, forty-four million, four hundred fifty-six thousand, eight hundred five".