20675600 has 120 divisors (see below), whose sum is σ = 56091648. Its totient is φ = 7257600.

The previous prime is 20675593. The next prime is 20675617. The reversal of 20675600 is 657602.

It is a self number, because there is not a number n which added to its sum of digits gives 20675600.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162737 + ... + 162863.

Almost surely, 2^20675600 is an apocalyptic number.

20675600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20675600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28045824).

20675600 is an abundant number, since it is smaller than the sum of its proper divisors (35416048).

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

20675600 is a wasteful number, since it uses less digits than its factorization.

20675600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 20675600 is about 4547.0429951783. The cubic root of 20675600 is about 274.4644121158.

It can be divided in two parts, 2067 and 5600, that added together give a palindrome (7667).

The spelling of 20675600 in words is "twenty million, six hundred seventy-five thousand, six hundred".