16426944 has 126 divisors (see below), whose sum is σ = 50322480. Its totient is φ = 5121792.

The previous prime is 16426939. The next prime is 16426951. The reversal of 16426944 is 44962461.

16426944 is a `hidden beast` number, since 1 + 642 + 6 + 9 + 4 + 4 = 666.

16426944 is nontrivially palindromic in base 7.

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 = 16426899 and 16426908.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 207897 + ... + 207975.

Almost surely, 2^16426944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16426944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25161240).

16426944 is an abundant number, since it is smaller than the sum of its proper divisors (33895536).

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

16426944 is a wasteful number, since it uses less digits than its factorization.

16426944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 103 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 16426944 is about 4053.0166542959. The cubic root of 16426944 is about 254.2058801571.

The spelling of 16426944 in words is "sixteen million, four hundred twenty-six thousand, nine hundred forty-four".