20107180 has 12 divisors (see below), whose sum is σ = 42225120. Its totient is φ = 8042864.

The previous prime is 20107177. The next prime is 20107183. The reversal of 20107180 is 8170102.

It is an interprime number because it is at equal distance from previous prime (20107177) and next prime (20107183).

It is not an unprimeable number, because it can be changed into a prime (20107183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 502660 + ... + 502699.

It is an arithmetic number, because the mean of its divisors is an integer number (3518760).

Almost surely, 2^20107180 is an apocalyptic number.

20107180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20107180 is an abundant number, since it is smaller than the sum of its proper divisors (22117940).

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

20107180 is a wasteful number, since it uses less digits than its factorization.

20107180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1005368 (or 1005366 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 20107180 is about 4484.1030318225. The cubic root of 20107180 is about 271.9257835289.

Adding to 20107180 its reverse (8170102), we get a palindrome (28277282).

The spelling of 20107180 in words is "twenty million, one hundred seven thousand, one hundred eighty".