140423353344 has 132 divisors (see below), whose sum is σ = 405898115220. Its totient is φ = 46758297600.

The previous prime is 140423353289. The next prime is 140423353351. The reversal of 140423353344 is 443353324041.

It is a happy number.

140423353344 is a `hidden beast` number, since 1 + 40 + 42 + 3 + 3 + 533 + 44 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 29134393344 + 111288960000 = 170688^2 + 333600^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 140423353299 and 140423353308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9291394 + ... + 9306494.

Almost surely, 2^140423353344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140423353344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202949057610).

140423353344 is an abundant number, since it is smaller than the sum of its proper divisors (265474761876).

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

140423353344 is a wasteful number, since it uses less digits than its factorization.

140423353344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16136 (or 16115 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 36.

Adding to 140423353344 its reverse (443353324041), we get a palindrome (583776677385).

The spelling of 140423353344 in words is "one hundred forty billion, four hundred twenty-three million, three hundred fifty-three thousand, three hundred forty-four".