20648948 has 24 divisors (see below), whose sum is σ = 38533824. Its totient is φ = 9648000.

The previous prime is 20648939. The next prime is 20648951. The reversal of 20648948 is 84984602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9263 + ... + 11273.

It is an arithmetic number, because the mean of its divisors is an integer number (1605576).

Almost surely, 2^20648948 is an apocalyptic number.

It is an amenable number.

20648948 is a deficient number, since it is larger than the sum of its proper divisors (17884876).

20648948 is a wasteful number, since it uses less digits than its factorization.

20648948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2183 (or 2181 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 20648948 is about 4544.1113542694. Note that the first 3 decimals coincide. The cubic root of 20648948 is about 274.3464281004.

The spelling of 20648948 in words is "twenty million, six hundred forty-eight thousand, nine hundred forty-eight".