20576146 has 8 divisors (see below), whose sum is σ = 30883644. Its totient is φ = 10281600.

The previous prime is 20576141. The next prime is 20576161. The reversal of 20576146 is 64167502.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19228225 + 1347921 = 4385^2 + 1161^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20576141) 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, 3766 + ... + 7438.

Almost surely, 2^20576146 is an apocalyptic number.

20576146 is a deficient number, since it is larger than the sum of its proper divisors (10307498).

20576146 is a wasteful number, since it uses less digits than its factorization.

20576146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6476.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 20576146 is about 4536.0936939177. The cubic root of 20576146 is about 274.0236273514.

The spelling of 20576146 in words is "twenty million, five hundred seventy-six thousand, one hundred forty-six".