20680848 has 30 divisors (see below), whose sum is σ = 57878054. Its totient is φ = 6893568.

The previous prime is 20680843. The next prime is 20680867. The reversal of 20680848 is 84808602.

It can be written as a sum of positive squares in only one way, i.e., 17040384 + 3640464 = 4128^2 + 1908^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (20680843) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71665 + ... + 71952.

Almost surely, 2^20680848 is an apocalyptic number.

It is an amenable number.

20680848 is an abundant number, since it is smaller than the sum of its proper divisors (37197206).

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

20680848 is a wasteful number, since it uses less digits than its factorization.

20680848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143631 (or 143622 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 20680848 is about 4547.6200368984. The cubic root of 20680848 is about 274.4876321978.

It can be divided in two parts, 20680 and 848, that added together give a triangular number (21528 = T₂₀₇).

The spelling of 20680848 in words is "twenty million, six hundred eighty thousand, eight hundred forty-eight".