13405432452 has 12 divisors (see below), whose sum is σ = 31279342416. Its totient is φ = 4468477480.

The previous prime is 13405432423. The next prime is 13405432507. The reversal of 13405432452 is 25423450431.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 558559674 + ... + 558559697.

It is an arithmetic number, because the mean of its divisors is an integer number (2606611868).

Almost surely, 2^13405432452 is an apocalyptic number.

13405432452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13405432452 is an abundant number, since it is smaller than the sum of its proper divisors (17873909964).

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

13405432452 is a wasteful number, since it uses less digits than its factorization.

13405432452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117119378 (or 1117119376 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 13405432452 its reverse (25423450431), we get a palindrome (38828882883).

The spelling of 13405432452 in words is "thirteen billion, four hundred five million, four hundred thirty-two thousand, four hundred fifty-two".