20135488 has 28 divisors (see below), whose sum is σ = 41696640. Its totient is φ = 9629312.

The previous prime is 20135447. The next prime is 20135501. The reversal of 20135488 is 88453102.

It is an unprimeable number.

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, 5368 + ... + 8311.

Almost surely, 2^20135488 is an apocalyptic number.

It is an amenable number.

20135488 is an abundant number, since it is smaller than the sum of its proper divisors (21561152).

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

20135488 is a wasteful number, since it uses less digits than its factorization.

20135488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13714 (or 13704 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 20135488 is about 4487.2584057529. The cubic root of 20135488 is about 272.0533344087.

The spelling of 20135488 in words is "twenty million, one hundred thirty-five thousand, four hundred eighty-eight".