16994448 has 140 divisors (see below), whose sum is σ = 52044288. Its totient is φ = 5365440.

The previous prime is 16994437. The next prime is 16994449. The reversal of 16994448 is 84449961.

It is a super-2 number, since 2×16994448² = 577622525649408, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (16994449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 361561 + ... + 361607.

Almost surely, 2^16994448 is an apocalyptic number.

16994448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16994448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26022144).

16994448 is an abundant number, since it is smaller than the sum of its proper divisors (35049840).

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

16994448 is an equidigital number, since it uses as much as digits as its factorization.

16994448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104 (or 83 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 16994448 is about 4122.4322917423. The cubic root of 16994448 is about 257.1001643408.

The spelling of 16994448 in words is "sixteen million, nine hundred ninety-four thousand, four hundred forty-eight".