20895120 has 60 divisors (see below), whose sum is σ = 70175196. Its totient is φ = 5571840.

The previous prime is 20895107. The next prime is 20895139. The reversal of 20895120 is 2159802.

It can be written as a sum of positive squares in 2 ways, for example, as 15586704 + 5308416 = 3948^2 + 2304^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13791 + ... + 15230.

Almost surely, 2^20895120 is an apocalyptic number.

20895120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20895120 is an abundant number, since it is smaller than the sum of its proper divisors (49280076).

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

20895120 is a wasteful number, since it uses less digits than its factorization.

20895120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29040 (or 29031 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 20895120 is about 4571.1180251663. The cubic root of 20895120 is about 275.4323557057.

The spelling of 20895120 in words is "twenty million, eight hundred ninety-five thousand, one hundred twenty".