20619614 has 4 divisors (see below), whose sum is σ = 30929424. Its totient is φ = 10309806.

The previous prime is 20619601. The next prime is 20619629. The reversal of 20619614 is 41691602.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 5154902 + ... + 5154905.

It is an arithmetic number, because the mean of its divisors is an integer number (7732356).

Almost surely, 2^20619614 is an apocalyptic number.

20619614 is a deficient number, since it is larger than the sum of its proper divisors (10309810).

20619614 is a wasteful number, since it uses less digits than its factorization.

20619614 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10309809.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 20619614 is about 4540.8825133447. The cubic root of 20619614 is about 274.2164538924.

The spelling of 20619614 in words is "twenty million, six hundred nineteen thousand, six hundred fourteen".