16504480 has 48 divisors (see below), whose sum is σ = 40347720. Its totient is φ = 6372352.

The previous prime is 16504471. The next prime is 16504487. The reversal of 16504480 is 8440561.

It can be written as a sum of positive squares in 4 ways, for example, as 10214416 + 6290064 = 3196^2 + 2508^2 .

It is not an unprimeable number, because it can be changed into a prime (16504487) 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, 2862 + ... + 6418.

Almost surely, 2^16504480 is an apocalyptic number.

16504480 is a gapful number since it is divisible by the number (10) 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 16504480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20173860).

16504480 is an abundant number, since it is smaller than the sum of its proper divisors (23843240).

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

16504480 is a wasteful number, since it uses less digits than its factorization.

16504480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3601 (or 3593 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 16504480 is about 4062.5706147709. The cubic root of 16504480 is about 254.6052073700.

The spelling of 16504480 in words is "sixteen million, five hundred four thousand, four hundred eighty".