20616614 has 16 divisors (see below), whose sum is σ = 32831568. Its totient is φ = 9676032.

The previous prime is 20616601. The next prime is 20616623. The reversal of 20616614 is 41661602.

It is a happy number.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 19442 + ... + 20474.

It is an arithmetic number, because the mean of its divisors is an integer number (2051973).

Almost surely, 2^20616614 is an apocalyptic number.

20616614 is a deficient number, since it is larger than the sum of its proper divisors (12214954).

20616614 is a wasteful number, since it uses less digits than its factorization.

20616614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 20616614 is about 4540.5521690649. The cubic root of 20616614 is about 274.2031544313.

The spelling of 20616614 in words is "twenty million, six hundred sixteen thousand, six hundred fourteen".