424444042520 has 32 divisors (see below), whose sum is σ = 978291760320. Its totient is φ = 165636698880.

The previous prime is 424444042507. The next prime is 424444042553. The reversal of 424444042520 is 25240444424.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129402032 + ... + 129405311.

It is an arithmetic number, because the mean of its divisors is an integer number (30571617510).

Almost surely, 2^424444042520 is an apocalyptic number.

424444042520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

424444042520 is an abundant number, since it is smaller than the sum of its proper divisors (553847717800).

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

424444042520 is a wasteful number, since it uses less digits than its factorization.

424444042520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258807395 (or 258807391 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 35.

Adding to 424444042520 its reverse (25240444424), we get a palindrome (449684486944).

The spelling of 424444042520 in words is "four hundred twenty-four billion, four hundred forty-four million, forty-two thousand, five hundred twenty".