20680514 has 8 divisors (see below), whose sum is σ = 31103760. Its totient is φ = 10312596.

The previous prime is 20680501. The next prime is 20680571. The reversal of 20680514 is 41508602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon 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 3 ways as a sum of consecutive naturals, for example, 12884 + ... + 14399.

It is an arithmetic number, because the mean of its divisors is an integer number (3887970).

Almost surely, 2^20680514 is an apocalyptic number.

20680514 is a deficient number, since it is larger than the sum of its proper divisors (10423246).

20680514 is a wasteful number, since it uses less digits than its factorization.

20680514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27664.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 20680514 is about 4547.5833142451. The cubic root of 20680514 is about 274.4861545124.

The spelling of 20680514 in words is "twenty million, six hundred eighty thousand, five hundred fourteen".