20614988 has 6 divisors (see below), whose sum is σ = 36076236. Its totient is φ = 10307492.

The previous prime is 20614987. The next prime is 20614991. The reversal of 20614988 is 88941602.

It is not an unprimeable number, because it can be changed into a prime (20614987) by changing a digit.

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, 2576870 + ... + 2576877.

It is an arithmetic number, because the mean of its divisors is an integer number (6012706).

Almost surely, 2^20614988 is an apocalyptic number.

It is an amenable number.

20614988 is a deficient number, since it is larger than the sum of its proper divisors (15461248).

20614988 is a wasteful number, since it uses less digits than its factorization.

20614988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5153751 (or 5153749 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 20614988 is about 4540.3731124215. The cubic root of 20614988 is about 274.1959455843.

The spelling of 20614988 in words is "twenty million, six hundred fourteen thousand, nine hundred eighty-eight".