16486720 has 28 divisors (see below), whose sum is σ = 39259764. Its totient is φ = 6594560.

The previous prime is 16486711. The next prime is 16486739. The reversal of 16486720 is 2768461.

It can be written as a sum of positive squares in 2 ways, for example, as 1679616 + 14807104 = 1296^2 + 3848^2 .

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 25441 + ... + 26080.

Almost surely, 2^16486720 is an apocalyptic number.

16486720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16486720 is an abundant number, since it is smaller than the sum of its proper divisors (22773044).

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

16486720 is an equidigital number, since it uses as much as digits as its factorization.

16486720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51538 (or 51528 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 16486720 is about 4060.3842182729. The cubic root of 16486720 is about 254.5138501269.

The spelling of 16486720 in words is "sixteen million, four hundred eighty-six thousand, seven hundred twenty".