16426644 has 48 divisors (see below), whose sum is σ = 42712320. Its totient is φ = 4878720.

The previous prime is 16426643. The next prime is 16426681. The reversal of 16426644 is 44662461.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16426643) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2709 + ... + 6339.

It is an arithmetic number, because the mean of its divisors is an integer number (889840).

Almost surely, 2^16426644 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 16426644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21356160).

16426644 is an abundant number, since it is smaller than the sum of its proper divisors (26285676).

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

16426644 is a wasteful number, since it uses less digits than its factorization.

16426644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3680 (or 3678 counting only the distinct ones).

The product of its digits is 27648, while the sum is 33.

The square root of 16426644 is about 4052.9796446565. The cubic root of 16426644 is about 254.2043326543.

The spelling of 16426644 in words is "sixteen million, four hundred twenty-six thousand, six hundred forty-four".