20340316 has 6 divisors (see below), whose sum is σ = 35595560. Its totient is φ = 10170156.

The previous prime is 20340311. The next prime is 20340319. The reversal of 20340316 is 61304302.

It is a junction number, because it is equal to n+sod(n) for n = 20340293 and 20340302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20340311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2542536 + ... + 2542543.

Almost surely, 2^20340316 is an apocalyptic number.

It is an amenable number.

20340316 is a deficient number, since it is larger than the sum of its proper divisors (15255244).

20340316 is a wasteful number, since it uses less digits than its factorization.

20340316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5085083 (or 5085081 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 20340316 is about 4510.0239467213. The cubic root of 20340316 is about 272.9727103548.

Adding to 20340316 its reverse (61304302), we get a palindrome (81644618).

The spelling of 20340316 in words is "twenty million, three hundred forty thousand, three hundred sixteen".