20700316 has 96 divisors (see below), whose sum is σ = 48263040. Its totient is φ = 7547904.

The previous prime is 20700313. The next prime is 20700319. The reversal of 20700316 is 61300702.

It is an interprime number because it is at equal distance from previous prime (20700313) and next prime (20700319).

It is a junction number, because it is equal to n+sod(n) for n = 20700293 and 20700302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20700313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 390546 + ... + 390598.

It is an arithmetic number, because the mean of its divisors is an integer number (502740).

Almost surely, 2^20700316 is an apocalyptic number.

20700316 is a gapful number since it is divisible by the number (26) 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 20700316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24131520).

20700316 is an abundant number, since it is smaller than the sum of its proper divisors (27562724).

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

20700316 is a wasteful number, since it uses less digits than its factorization.

20700316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 20700316 is about 4549.7599936700. The cubic root of 20700316 is about 274.5737352003.

It can be divided in two parts, 20 and 700316, that added together give a triangular number (700336 = T₁₁₈₃).

The spelling of 20700316 in words is "twenty million, seven hundred thousand, three hundred sixteen".