20630541 has 8 divisors (see below), whose sum is σ = 27895104. Its totient is φ = 13559840.

The previous prime is 20630507. The next prime is 20630543. The reversal of 20630541 is 14503602.

It is a happy number.

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 20630541 - 2⁷ = 20630413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20630543) 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, 48216 + ... + 48641.

It is an arithmetic number, because the mean of its divisors is an integer number (3486888).

Almost surely, 2^20630541 is an apocalyptic number.

It is an amenable number.

20630541 is a deficient number, since it is larger than the sum of its proper divisors (7264563).

20630541 is an equidigital number, since it uses as much as digits as its factorization.

20630541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96931.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 20630541 is about 4542.0855342012. The cubic root of 20630541 is about 274.2648840596.

The spelling of 20630541 in words is "twenty million, six hundred thirty thousand, five hundred forty-one".