424103231440 has 80 divisors (see below), whose sum is σ = 1165761636480. Its totient is φ = 140392788480.

The previous prime is 424103231437. The next prime is 424103231473. The reversal of 424103231440 is 44132301424.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 424103231399 and 424103231408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13041126 + ... + 13073605.

It is an arithmetic number, because the mean of its divisors is an integer number (14572020456).

Almost surely, 2^424103231440 is an apocalyptic number.

424103231440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

424103231440 is an abundant number, since it is smaller than the sum of its proper divisors (741658405040).

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

424103231440 is a wasteful number, since it uses less digits than its factorization.

424103231440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26114780 (or 26114774 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 424103231440 its reverse (44132301424), we get a palindrome (468235532864).

The spelling of 424103231440 in words is "four hundred twenty-four billion, one hundred three million, two hundred thirty-one thousand, four hundred forty".