20530848 has 48 divisors (see below), whose sum is σ = 58042656. Its totient is φ = 6316800.

The previous prime is 20530841. The next prime is 20530871. The reversal of 20530848 is 84803502.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (20530841) 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, 6978 + ... + 9473.

It is an arithmetic number, because the mean of its divisors is an integer number (1209222).

Almost surely, 2^20530848 is an apocalyptic number.

It is an amenable number.

20530848 is an abundant number, since it is smaller than the sum of its proper divisors (37511808).

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

20530848 is a wasteful number, since it uses less digits than its factorization.

20530848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16477 (or 16469 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 20530848 is about 4531.0978802052. The cubic root of 20530848 is about 273.8223936474.

The spelling of 20530848 in words is "twenty million, five hundred thirty thousand, eight hundred forty-eight".