20614860 has 72 divisors (see below), whose sum is σ = 71469216. Its totient is φ = 4711680.

The previous prime is 20614859. The next prime is 20614871. The reversal of 20614860 is 6841602.

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 23 ways as a sum of consecutive naturals, for example, 6921 + ... + 9440.

It is an arithmetic number, because the mean of its divisors is an integer number (992628).

Almost surely, 2^20614860 is an apocalyptic number.

20614860 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20614860 is an abundant number, since it is smaller than the sum of its proper divisors (50854356).

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

20614860 is a wasteful number, since it uses less digits than its factorization.

20614860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16383 (or 16378 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 20614860 is about 4540.3590166417. The cubic root of 20614860 is about 274.1953780821.

The spelling of 20614860 in words is "twenty million, six hundred fourteen thousand, eight hundred sixty".