143072403640 has 128 divisors (see below), whose sum is σ = 347626857600. Its totient is φ = 52879841280.

The previous prime is 143072403629. The next prime is 143072403653. The reversal of 143072403640 is 46304270341.

It is a junction number, because it is equal to n+sod(n) for n = 143072403596 and 143072403605.

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, 2590797 + ... + 2645443.

It is an arithmetic number, because the mean of its divisors is an integer number (2715834825).

Almost surely, 2^143072403640 is an apocalyptic number.

143072403640 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 143072403640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173813428800).

143072403640 is an abundant number, since it is smaller than the sum of its proper divisors (204554453960).

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

143072403640 is a wasteful number, since it uses less digits than its factorization.

143072403640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54785 (or 54781 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 34.

Adding to 143072403640 its reverse (46304270341), we get a palindrome (189376673981).

The spelling of 143072403640 in words is "one hundred forty-three billion, seventy-two million, four hundred three thousand, six hundred forty".