20527988 has 24 divisors (see below), whose sum is σ = 39348960. Its totient is φ = 9312480.

The previous prime is 20527981. The next prime is 20528023. The reversal of 20527988 is 88972502.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20527981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278 + ... + 6413.

It is an arithmetic number, because the mean of its divisors is an integer number (1639540).

Almost surely, 2^20527988 is an apocalyptic number.

It is an amenable number.

20527988 is a deficient number, since it is larger than the sum of its proper divisors (18820972).

20527988 is a wasteful number, since it uses less digits than its factorization.

20527988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6767 (or 6765 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 20527988 is about 4530.7822724117. The cubic root of 20527988 is about 273.8096783354.

The spelling of 20527988 in words is "twenty million, five hundred twenty-seven thousand, nine hundred eighty-eight".