13195944 has 48 divisors (see below), whose sum is σ = 37844820. Its totient is φ = 4139520.

The previous prime is 13195913. The next prime is 13195967. The reversal of 13195944 is 44959131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13176900 + 19044 = 3630^2 + 138^2 .

It is a super-2 number, since 2×13195944² = 348265876102272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 13195899 and 13195908.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4167 + ... + 6614.

Almost surely, 2^13195944 is an apocalyptic number.

It is an amenable number.

13195944 is an abundant number, since it is smaller than the sum of its proper divisors (24648876).

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

13195944 is a wasteful number, since it uses less digits than its factorization.

13195944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10810 (or 10803 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 13195944 is about 3632.6221934024. The cubic root of 13195944 is about 236.3089413699.

The spelling of 13195944 in words is "thirteen million, one hundred ninety-five thousand, nine hundred forty-four".