16422744 has 48 divisors (see below), whose sum is σ = 44469000. Its totient is φ = 5051904.

The previous prime is 16422743. The next prime is 16422761. The reversal of 16422744 is 44722461.

16422744 = 171² + 172² + ... + 378².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16422743) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2032 + ... + 6080.

Almost surely, 2^16422744 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 16422744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22234500).

16422744 is an abundant number, since it is smaller than the sum of its proper divisors (28046256).

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

16422744 is a wasteful number, since it uses less digits than its factorization.

16422744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4084 (or 4067 counting only the distinct ones).

The product of its digits is 10752, while the sum is 30.

The square root of 16422744 is about 4052.4984885870. The cubic root of 16422744 is about 254.1842134024.

The spelling of 16422744 in words is "sixteen million, four hundred twenty-two thousand, seven hundred forty-four".