20128960 has 28 divisors (see below), whose sum is σ = 47932848. Its totient is φ = 8051456.

The previous prime is 20128957. The next prime is 20128967. The reversal of 20128960 is 6982102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20128967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31132 + ... + 31771.

Almost surely, 2^20128960 is an apocalyptic number.

20128960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20128960 is an abundant number, since it is smaller than the sum of its proper divisors (27803888).

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

20128960 is an equidigital number, since it uses as much as digits as its factorization.

20128960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62920 (or 62910 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 20128960 is about 4486.5309538662. The cubic root of 20128960 is about 272.0239309971.

It can be divided in two parts, 201 and 28960, that added together give a triangular number (29161 = T₂₄₁).

The spelling of 20128960 in words is "twenty million, one hundred twenty-eight thousand, nine hundred sixty".