13404032121444 has 24 divisors (see below), whose sum is σ = 33115844065248. Its totient is φ = 4205186547840.

The previous prime is 13404032121437. The next prime is 13404032121499. The reversal of 13404032121444 is 44412123040431.

It is a happy number.

It is a super-2 number, since 2×13404032121444² (a number of 27 digits) contains 22 as substring.

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, 32853019702 + ... + 32853020109.

It is an arithmetic number, because the mean of its divisors is an integer number (1379826836052).

Almost surely, 2^{13404032121444} is an apocalyptic number.

It is an amenable number.

13404032121444 is an abundant number, since it is smaller than the sum of its proper divisors (19711811943804).

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

13404032121444 is a wasteful number, since it uses less digits than its factorization.

13404032121444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65706039835 (or 65706039833 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 13404032121444 its reverse (44412123040431), we get a palindrome (57816155161875).

The spelling of 13404032121444 in words is "thirteen trillion, four hundred four billion, thirty-two million, one hundred twenty-one thousand, four hundred forty-four".