20234424531440 has 80 divisors (see below), whose sum is σ = 53772356890560. Its totient is φ = 6936665333760.

The previous prime is 20234424531421. The next prime is 20234424531577. The reversal of 20234424531440 is 4413542443202.

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

It is a super-2 number, since 2×20234424531440² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20234424531394 and 20234424531403.

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, 2356406 + ... + 6783914.

It is an arithmetic number, because the mean of its divisors is an integer number (672154461132).

Almost surely, 2^{20234424531440} is an apocalyptic number.

20234424531440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20234424531440 is an abundant number, since it is smaller than the sum of its proper divisors (33537932359120).

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

20234424531440 is a wasteful number, since it uses less digits than its factorization.

20234424531440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4435690 (or 4435684 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 38.

Adding to 20234424531440 its reverse (4413542443202), we get a palindrome (24647966974642).

The spelling of 20234424531440 in words is "twenty trillion, two hundred thirty-four billion, four hundred twenty-four million, five hundred thirty-one thousand, four hundred forty".