20960700 has 72 divisors (see below), whose sum is σ = 61298160. Its totient is φ = 5529600.

The previous prime is 20960699. The next prime is 20960701. The reversal of 20960700 is 706902.

It is an interprime number because it is at equal distance from previous prime (20960699) and next prime (20960701).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20960701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32380 + ... + 33020.

Almost surely, 2^20960700 is an apocalyptic number.

20960700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20960700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30649080).

20960700 is an abundant number, since it is smaller than the sum of its proper divisors (40337460).

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

20960700 is a wasteful number, since it uses less digits than its factorization.

20960700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767 (or 760 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 20960700 is about 4578.2857053705. The cubic root of 20960700 is about 275.7202058484.

The spelling of 20960700 in words is "twenty million, nine hundred sixty thousand, seven hundred".