16804580 has 24 divisors (see below), whose sum is σ = 38004792. Its totient is φ = 6204672.

The previous prime is 16804577. The next prime is 16804589. The reversal of 16804580 is 8540861.

It can be written as a sum of positive squares in 4 ways, for example, as 369664 + 16434916 = 608^2 + 4054^2 .

It is not an unprimeable number, because it can be changed into a prime (16804589) 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, 32057 + ... + 32576.

It is an arithmetic number, because the mean of its divisors is an integer number (1583533).

Almost surely, 2^16804580 is an apocalyptic number.

16804580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16804580 is an abundant number, since it is smaller than the sum of its proper divisors (21200212).

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

16804580 is a wasteful number, since it uses less digits than its factorization.

16804580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64655 (or 64653 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The square root of 16804580 is about 4099.3389711025. The cubic root of 16804580 is about 256.1391049010.

The spelling of 16804580 in words is "sixteen million, eight hundred four thousand, five hundred eighty".