16481328 has 40 divisors (see below), whose sum is σ = 42751728. Its totient is φ = 5471232.

The previous prime is 16481327. The next prime is 16481329. The reversal of 16481328 is 82318461.

It is an interprime number because it is at equal distance from previous prime (16481327) and next prime (16481329).

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 (16481327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14476 + ... + 15572.

Almost surely, 2^16481328 is an apocalyptic number.

It is an amenable number.

16481328 is an abundant number, since it is smaller than the sum of its proper divisors (26270400).

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

16481328 is a wasteful number, since it uses less digits than its factorization.

16481328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421 (or 1415 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 16481328 is about 4059.7201874021. The cubic root of 16481328 is about 254.4861007561.

Adding to 16481328 its reverse (82318461), we get a palindrome (98799789).

The spelling of 16481328 in words is "sixteen million, four hundred eighty-one thousand, three hundred twenty-eight".