20460875 has 16 divisors (see below), whose sum is σ = 25698816. Its totient is φ = 16264000.

The previous prime is 20460871. The next prime is 20460887. The reversal of 20460875 is 57806402.

It is not a de Polignac number, because 20460875 - 2² = 20460871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20460871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23447 + ... + 24303.

It is an arithmetic number, because the mean of its divisors is an integer number (1606176).

Almost surely, 2^20460875 is an apocalyptic number.

20460875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20460875 is a deficient number, since it is larger than the sum of its proper divisors (5237941).

20460875 is an equidigital number, since it uses as much as digits as its factorization.

20460875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063 (or 1053 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 20460875 is about 4523.3698721197. The cubic root of 20460875 is about 273.5109601268.

The spelling of 20460875 in words is "twenty million, four hundred sixty thousand, eight hundred seventy-five".