424420040440 has 48 divisors (see below), whose sum is σ = 1049650401240. Its totient is φ = 154334558400.

The previous prime is 424420040437. The next prime is 424420040449. The reversal of 424420040440 is 44040024424.

It is a junction number, because it is equal to n+sod(n) for n = 424420040399 and 424420040408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424420040449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43840206 + ... + 43849885.

Almost surely, 2^424420040440 is an apocalyptic number.

424420040440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

424420040440 is an abundant number, since it is smaller than the sum of its proper divisors (625230360800).

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

424420040440 is a wasteful number, since it uses less digits than its factorization.

424420040440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87690124 (or 87690109 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 424420040440 its reverse (44040024424), we get a palindrome (468460064864).

The spelling of 424420040440 in words is "four hundred twenty-four billion, four hundred twenty million, forty thousand, four hundred forty".