20560700 has 18 divisors (see below), whose sum is σ = 44616936. Its totient is φ = 8224240.

The previous prime is 20560697. The next prime is 20560703. The reversal of 20560700 is 706502.

It is an interprime number because it is at equal distance from previous prime (20560697) and next prime (20560703).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20560703) 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, 102704 + ... + 102903.

Almost surely, 2^20560700 is an apocalyptic number.

20560700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20560700 is an abundant number, since it is smaller than the sum of its proper divisors (24056236).

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

20560700 is a wasteful number, since it uses less digits than its factorization.

20560700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205621 (or 205614 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 20560700 is about 4534.3908080358. The cubic root of 20560700 is about 273.9550426177.

The spelling of 20560700 in words is "twenty million, five hundred sixty thousand, seven hundred".