16749056 has 20 divisors (see below), whose sum is σ = 33466422. Its totient is φ = 8374272.

The previous prime is 16749053. The next prime is 16749067. The reversal of 16749056 is 65094761.

It can be written as a sum of positive squares in only one way, i.e., 14137600 + 2611456 = 3760^2 + 1616^2 .

It is a super-2 number, since 2×16749056² = 561061753782272, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a nialpdrome in base 8 and base 16.

It is a zygodrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (16749053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15845 + ... + 16868.

Almost surely, 2^16749056 is an apocalyptic number.

16749056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16749056 is a deficient number, since it is larger than the sum of its proper divisors (16717366).

16749056 is an frugal number, since it uses more digits than its factorization.

16749056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32731 (or 32715 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 16749056 is about 4092.5610563558. The cubic root of 16749056 is about 255.8566906234.

The spelling of 16749056 in words is "sixteen million, seven hundred forty-nine thousand, fifty-six".