1540344232232 has 32 divisors (see below), whose sum is σ = 3121379248680. Its totient is φ = 708398100480.

The previous prime is 1540344232187. The next prime is 1540344232261. The reversal of 1540344232232 is 2322324430451.

It can be written as a sum of positive squares in 4 ways, for example, as 1263569335396 + 276774896836 = 1124086^2 + 526094^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1540344232192 and 1540344232201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26324873 + ... + 26383320.

Almost surely, 2^{1540344232232} is an apocalyptic number.

It is an amenable number.

1540344232232 is an abundant number, since it is smaller than the sum of its proper divisors (1581035016448).

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

1540344232232 is a wasteful number, since it uses less digits than its factorization.

1540344232232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52708493 (or 52708489 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 1540344232232 its reverse (2322324430451), we get a palindrome (3862668662683).

The spelling of 1540344232232 in words is "one trillion, five hundred forty billion, three hundred forty-four million, two hundred thirty-two thousand, two hundred thirty-two".