2320422423440 has 160 divisors (see below), whose sum is σ = 6135446449152. Its totient is φ = 808485120000.

The previous prime is 2320422423413. The next prime is 2320422423491. The reversal of 2320422423440 is 443242240232.

It is a super-2 number, since 2×2320422423440² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2320422423397 and 2320422423406.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2334194 + ... + 3176366.

Almost surely, 2^{2320422423440} is an apocalyptic number.

2320422423440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2320422423440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3067723224576).

2320422423440 is an abundant number, since it is smaller than the sum of its proper divisors (3815024025712).

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

2320422423440 is a wasteful number, since it uses less digits than its factorization.

2320422423440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842329 (or 842323 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 32.

Adding to 2320422423440 its reverse (443242240232), we get a palindrome (2763664663672).

The spelling of 2320422423440 in words is "two trillion, three hundred twenty billion, four hundred twenty-two million, four hundred twenty-three thousand, four hundred forty".