20730548 has 36 divisors (see below), whose sum is σ = 39197760. Its totient is φ = 9589632.

The previous prime is 20730533. The next prime is 20730551. The reversal of 20730548 is 84503702.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20730548.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91211 + ... + 91437.

Almost surely, 2^20730548 is an apocalyptic number.

It is an amenable number.

20730548 is a deficient number, since it is larger than the sum of its proper divisors (18467212).

20730548 is a wasteful number, since it uses less digits than its factorization.

20730548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344 (or 325 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 20730548 is about 4553.0811545590. The cubic root of 20730548 is about 274.7073382394.

The spelling of 20730548 in words is "twenty million, seven hundred thirty thousand, five hundred forty-eight".