423044403400 has 24 divisors (see below), whose sum is σ = 983578238370. Its totient is φ = 169217761280.

The previous prime is 423044403359. The next prime is 423044403401. The reversal of 423044403400 is 4304440324.

It can be written as a sum of positive squares in 3 ways, for example, as 400407997284 + 22636406116 = 632778^2 + 150454^2 .

It is not an unprimeable number, because it can be changed into a prime (423044403401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1057610809 + ... + 1057611208.

Almost surely, 2^423044403400 is an apocalyptic number.

423044403400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423044403400 is an abundant number, since it is smaller than the sum of its proper divisors (560533834970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423044403400 is a wasteful number, since it uses less digits than its factorization.

423044403400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2115222033 (or 2115222024 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 423044403400 its reverse (4304440324), we get a palindrome (427348843724).

The spelling of 423044403400 in words is "four hundred twenty-three billion, forty-four million, four hundred three thousand, four hundred".