20007316 has 24 divisors (see below), whose sum is σ = 40501440. Its totient is φ = 8470272.

The previous prime is 20007311. The next prime is 20007319. The reversal of 20007316 is 61370002.

It is a junction number, because it is equal to n+sod(n) for n = 20007293 and 20007302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20007311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1981 + ... + 6628.

It is an arithmetic number, because the mean of its divisors is an integer number (1687560).

Almost surely, 2^20007316 is an apocalyptic number.

It is an amenable number.

20007316 is an abundant number, since it is smaller than the sum of its proper divisors (20494124).

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

20007316 is a wasteful number, since it uses less digits than its factorization.

20007316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8703 (or 8701 counting only the distinct ones).

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

The square root of 20007316 is about 4472.9538338776. The cubic root of 20007316 is about 271.4748554234.

Adding to 20007316 its reverse (61370002), we get a palindrome (81377318).

It can be divided in two parts, 2000 and 7316, that added together give a triangular number (9316 = T₁₃₆).

The spelling of 20007316 in words is "twenty million, seven thousand, three hundred sixteen".