143441232440 has 128 divisors (see below), whose sum is σ = 355251536640. Its totient is φ = 51692160000.

The previous prime is 143441232433. The next prime is 143441232463. The reversal of 143441232440 is 44232144341.

It is a super-2 number, since 2×143441232440² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 143441232397 and 143441232406.

It is a congruent number.

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, 62884100 + ... + 62886380.

It is an arithmetic number, because the mean of its divisors is an integer number (2775402630).

Almost surely, 2^143441232440 is an apocalyptic number.

143441232440 is a gapful number since it is divisible by the number (10) 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 143441232440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177625768320).

143441232440 is an abundant number, since it is smaller than the sum of its proper divisors (211810304200).

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

143441232440 is a wasteful number, since it uses less digits than its factorization.

143441232440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3525 (or 3521 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 143441232440 its reverse (44232144341), we get a palindrome (187673376781).

The spelling of 143441232440 in words is "one hundred forty-three billion, four hundred forty-one million, two hundred thirty-two thousand, four hundred forty".