20759130 has 96 divisors (see below), whose sum is σ = 62584704. Its totient is φ = 4675968.

The previous prime is 20759129. The next prime is 20759131. The reversal of 20759130 is 3195702.

It is an interprime number because it is at equal distance from previous prime (20759129) and next prime (20759131).

It is a junction number, because it is equal to n+sod(n) for n = 20759094 and 20759103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20759131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 52092 + ... + 52488.

It is an arithmetic number, because the mean of its divisors is an integer number (651924).

Almost surely, 2^20759130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20759130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31292352).

20759130 is an abundant number, since it is smaller than the sum of its proper divisors (41825574).

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

20759130 is a wasteful number, since it uses less digits than its factorization.

20759130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500 (or 497 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 20759130 is about 4556.2188270539. The cubic root of 20759130 is about 274.8335301026.

The spelling of 20759130 in words is "twenty million, seven hundred fifty-nine thousand, one hundred thirty".