13444132420 has 24 divisors (see below), whose sum is σ = 28405891584. Its totient is φ = 5344659936.

The previous prime is 13444132411. The next prime is 13444132439. The reversal of 13444132420 is 2423144431.

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, 2058724 + ... + 2065243.

It is an arithmetic number, because the mean of its divisors is an integer number (1183578816).

Almost surely, 2^13444132420 is an apocalyptic number.

13444132420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13444132420 is an abundant number, since it is smaller than the sum of its proper divisors (14961759164).

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

13444132420 is a wasteful number, since it uses less digits than its factorization.

13444132420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4124139 (or 4124137 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 13444132420 its reverse (2423144431), we get a palindrome (15867276851).

The spelling of 13444132420 in words is "thirteen billion, four hundred forty-four million, one hundred thirty-two thousand, four hundred twenty".