20049648 has 40 divisors (see below), whose sum is σ = 52080000. Its totient is φ = 6646464.

The previous prime is 20049607. The next prime is 20049649. The reversal of 20049648 is 84694002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20049649) 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, 8503 + ... + 10601.

It is an arithmetic number, because the mean of its divisors is an integer number (1302000).

Almost surely, 2^20049648 is an apocalyptic number.

It is an amenable number.

20049648 is an abundant number, since it is smaller than the sum of its proper divisors (32030352).

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

20049648 is a wasteful number, since it uses less digits than its factorization.

20049648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2309 (or 2303 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 20049648 is about 4477.6833295802. The cubic root of 20049648 is about 271.6661850686. Note that the first 3 decimals are identical.

The spelling of 20049648 in words is "twenty million, forty-nine thousand, six hundred forty-eight".