20572941 has 8 divisors (see below), whose sum is σ = 29044224. Its totient is φ = 12908480.

The previous prime is 20572931. The next prime is 20573011. The reversal of 20572941 is 14927502.

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

It is a cyclic number.

It is not a de Polignac number, because 20572941 - 2⁹ = 20572429 is a prime.

It is a super-3 number, since 3×20572941³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20572899 and 20572908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20572901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201645 + ... + 201746.

It is an arithmetic number, because the mean of its divisors is an integer number (3630528).

Almost surely, 2^20572941 is an apocalyptic number.

It is an amenable number.

20572941 is a deficient number, since it is larger than the sum of its proper divisors (8471283).

20572941 is a wasteful number, since it uses less digits than its factorization.

20572941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403411.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 20572941 is about 4535.7404026245. The cubic root of 20572941 is about 274.0093990418.

The spelling of 20572941 in words is "twenty million, five hundred seventy-two thousand, nine hundred forty-one".