20488086 has 32 divisors (see below), whose sum is σ = 47001600. Its totient is φ = 6608520.

The previous prime is 20488063. The next prime is 20488093. The reversal of 20488086 is 68088402.

It is a self number, because there is not a number n which added to its sum of digits gives 20488086.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4446 + ... + 7793.

It is an arithmetic number, because the mean of its divisors is an integer number (1468800).

Almost surely, 2^20488086 is an apocalyptic number.

20488086 is an abundant number, since it is smaller than the sum of its proper divisors (26513514).

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

20488086 is a wasteful number, since it uses less digits than its factorization.

20488086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12281 (or 12275 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 20488086 is about 4526.3766966526. The cubic root of 20488086 is about 273.6321541927.

The spelling of 20488086 in words is "twenty million, four hundred eighty-eight thousand, eighty-six".