13404431452 has 12 divisors (see below), whose sum is σ = 24003284536. Its totient is φ = 6546350160.

The previous prime is 13404431389. The next prime is 13404431483. The reversal of 13404431452 is 25413440431.

It is a congruent number.

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, 38966199 + ... + 38966542.

Almost surely, 2^13404431452 is an apocalyptic number.

It is an amenable number.

13404431452 is a deficient number, since it is larger than the sum of its proper divisors (10598853084).

13404431452 is a wasteful number, since it uses less digits than its factorization.

13404431452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77932788 (or 77932786 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 13404431452 its reverse (25413440431), we get a palindrome (38817871883).

The spelling of 13404431452 in words is "thirteen billion, four hundred four million, four hundred thirty-one thousand, four hundred fifty-two".