20048664 has 32 divisors (see below), whose sum is σ = 51289920. Its totient is φ = 6527136.

The previous prime is 20048659. The next prime is 20048669. The reversal of 20048664 is 46684002.

It is an interprime number because it is at equal distance from previous prime (20048659) and next prime (20048669).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20048669) 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, 8682 + ... + 10745.

It is an arithmetic number, because the mean of its divisors is an integer number (1602810).

Almost surely, 2^20048664 is an apocalyptic number.

20048664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20048664 is an abundant number, since it is smaller than the sum of its proper divisors (31241256).

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

20048664 is a wasteful number, since it uses less digits than its factorization.

20048664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19479 (or 19475 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 20048664 is about 4477.5734499838. The cubic root of 20048664 is about 271.6617407030.

The spelling of 20048664 in words is "twenty million, forty-eight thousand, six hundred sixty-four".