424323420444 has 144 divisors (see below), whose sum is σ = 1351048747776. Its totient is φ = 109077580800.

The previous prime is 424323420431. The next prime is 424323420491. The reversal of 424323420444 is 444024323424.

424323420444 is a `hidden beast` number, since 424 + 3 + 23 + 4 + 204 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 424323420399 and 424323420408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 520162 + ... + 1057929.

Almost surely, 2^424323420444 is an apocalyptic number.

424323420444 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

424323420444 is an abundant number, since it is smaller than the sum of its proper divisors (926725327332).

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

424323420444 is a wasteful number, since it uses less digits than its factorization.

424323420444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578216 (or 1578211 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 36.

Adding to 424323420444 its reverse (444024323424), we get a palindrome (868347743868).

The spelling of 424323420444 in words is "four hundred twenty-four billion, three hundred twenty-three million, four hundred twenty thousand, four hundred forty-four".