16540980 has 48 divisors (see below), whose sum is σ = 47814144. Its totient is φ = 4268160.

The previous prime is 16540967. The next prime is 16541009. The reversal of 16540980 is 8904561.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2587 + ... + 6306.

It is an arithmetic number, because the mean of its divisors is an integer number (996128).

Almost surely, 2^16540980 is an apocalyptic number.

16540980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16540980 is an abundant number, since it is smaller than the sum of its proper divisors (31273164).

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

16540980 is a wasteful number, since it uses less digits than its factorization.

16540980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8936 (or 8934 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 16540980 is about 4067.0603634566. The cubic root of 16540980 is about 254.7927574140.

The spelling of 16540980 in words is "sixteen million, five hundred forty thousand, nine hundred eighty".