2023420421440 has 56 divisors (see below), whose sum is σ = 5256294422112. Its totient is φ = 735789242880.

The previous prime is 2023420421431. The next prime is 2023420421461. The reversal of 2023420421440 is 441240243202.

It is a junction number, because it is equal to n+sod(n) for n = 2023420421399 and 2023420421408.

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, 287414154 + ... + 287421193.

Almost surely, 2^{2023420421440} is an apocalyptic number.

2023420421440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2023420421440 is an abundant number, since it is smaller than the sum of its proper divisors (3232874000672).

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

2023420421440 is a wasteful number, since it uses less digits than its factorization.

2023420421440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574835375 (or 574835365 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 2023420421440 its reverse (441240243202), we get a palindrome (2464660664642).

The spelling of 2023420421440 in words is "two trillion, twenty-three billion, four hundred twenty million, four hundred twenty-one thousand, four hundred forty".