13433132440 has 96 divisors (see below), whose sum is σ = 37863791280. Its totient is φ = 4251356928.

The previous prime is 13433132413. The next prime is 13433132459. The reversal of 13433132440 is 4423133431.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 13433132399 and 13433132408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 238122 + ... + 289081.

Almost surely, 2^13433132440 is an apocalyptic number.

13433132440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13433132440 is an abundant number, since it is smaller than the sum of its proper divisors (24430658840).

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

13433132440 is a wasteful number, since it uses less digits than its factorization.

13433132440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527241 (or 527230 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 13433132440 its reverse (4423133431), we get a palindrome (17856265871).

Subtracting from 13433132440 its reverse (4423133431), we obtain a palindrome (9009999009).

The spelling of 13433132440 in words is "thirteen billion, four hundred thirty-three million, one hundred thirty-two thousand, four hundred forty".