424427265144 has 96 divisors (see below), whose sum is σ = 1194063670800. Its totient is φ = 136030325760.

The previous prime is 424427265107. The next prime is 424427265169. The reversal of 424427265144 is 441562724424.

It is a happy number.

424427265144 is a `hidden beast` number, since 4 + 2 + 442 + 7 + 2 + 65 + 144 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 424427265144.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 81487 + ... + 924929.

Almost surely, 2^424427265144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 424427265144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (597031835400).

424427265144 is an abundant number, since it is smaller than the sum of its proper divisors (769636405656).

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

424427265144 is a wasteful number, since it uses less digits than its factorization.

424427265144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843725 (or 843718 counting only the distinct ones).

The product of its digits is 1720320, while the sum is 45.

Adding to 424427265144 its reverse (441562724424), we get a palindrome (865989989568).

The spelling of 424427265144 in words is "four hundred twenty-four billion, four hundred twenty-seven million, two hundred sixty-five thousand, one hundred forty-four".