16129944 has 24 divisors (see below), whose sum is σ = 43685460. Its totient is φ = 5376624.

The previous prime is 16129937. The next prime is 16129963. The reversal of 16129944 is 44992161.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

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

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 16129899 and 16129908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111942 + ... + 112085.

Almost surely, 2^16129944 is an apocalyptic number.

It is an amenable number.

16129944 is an abundant number, since it is smaller than the sum of its proper divisors (27555516).

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

16129944 is a wasteful number, since it uses less digits than its factorization.

16129944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224039 (or 224032 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 16129944 is about 4016.2101538640. The cubic root of 16129944 is about 252.6645347906.

The spelling of 16129944 in words is "sixteen million, one hundred twenty-nine thousand, nine hundred forty-four".