20560146 has 8 divisors (see below), whose sum is σ = 41120304. Its totient is φ = 6853380.

The previous prime is 20560129. The next prime is 20560151. The reversal of 20560146 is 64106502.

It is a sphenic number, since it is the product of 3 distinct primes.

20560146 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1713340 + ... + 1713351.

It is an arithmetic number, because the mean of its divisors is an integer number (5140038).

Almost surely, 2^20560146 is an apocalyptic number.

20560146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20560146 is a wasteful number, since it uses less digits than its factorization.

20560146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3426696.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 20560146 is about 4534.3297189331. The cubic root of 20560146 is about 273.9525820585.

Adding to 20560146 its reverse (64106502), we get a palindrome (84666648).

It can be divided in two parts, 20560 and 146, that added together give a triangular number (20706 = T₂₀₃).

The spelling of 20560146 in words is "twenty million, five hundred sixty thousand, one hundred forty-six".