20480688 has 50 divisors (see below), whose sum is σ = 59280804. Its totient is φ = 6826464.

The previous prime is 20480687. The next prime is 20480701. The reversal of 20480688 is 88608402.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (20480683) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6606 + ... + 9197.

Almost surely, 2^20480688 is an apocalyptic number.

It is an amenable number.

20480688 is an abundant number, since it is smaller than the sum of its proper divisors (38800116).

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

20480688 is a wasteful number, since it uses less digits than its factorization.

20480688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15823 (or 15808 counting only the distinct ones).

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

The square root of 20480688 is about 4525.5594129345. The cubic root of 20480688 is about 273.5992151409.

The spelling of 20480688 in words is "twenty million, four hundred eighty thousand, six hundred eighty-eight".