20205488 has 40 divisors (see below), whose sum is σ = 40539072. Its totient is φ = 9750528.

The previous prime is 20205487. The next prime is 20205517. The reversal of 20205488 is 88450202.

It is a self number, because there is not a number n which added to its sum of digits gives 20205488.

It is not an unprimeable number, because it can be changed into a prime (20205481) 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, 72806 + ... + 73082.

Almost surely, 2^20205488 is an apocalyptic number.

It is an amenable number.

20205488 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

20205488 is a wasteful number, since it uses less digits than its factorization.

20205488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429 (or 423 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 20205488 is about 4495.0515013735. The cubic root of 20205488 is about 272.3682296448.

The spelling of 20205488 in words is "twenty million, two hundred five thousand, four hundred eighty-eight".