20040488 has 16 divisors (see below), whose sum is σ = 40466580. Its totient is φ = 9249408.

The previous prime is 20040481. The next prime is 20040499. The reversal of 20040488 is 88404002.

It can be written as a sum of positive squares in 2 ways, for example, as 19909444 + 131044 = 4462^2 + 362^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (20040481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96245 + ... + 96452.

Almost surely, 2^20040488 is an apocalyptic number.

It is an amenable number.

20040488 is an abundant number, since it is smaller than the sum of its proper divisors (20426092).

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

20040488 is a wasteful number, since it uses less digits than its factorization.

20040488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192716 (or 192712 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 20040488 is about 4476.6603623684. The cubic root of 20040488 is about 271.6248070967.

The spelling of 20040488 in words is "twenty million, forty thousand, four hundred eighty-eight".