20056180 has 12 divisors (see below), whose sum is σ = 42118020. Its totient is φ = 8022464.

The previous prime is 20056177. The next prime is 20056193. The reversal of 20056180 is 8165002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15163236 + 4892944 = 3894^2 + 2212^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 501385 + ... + 501424.

It is an arithmetic number, because the mean of its divisors is an integer number (3509835).

Almost surely, 2^20056180 is an apocalyptic number.

20056180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20056180 is an abundant number, since it is smaller than the sum of its proper divisors (22061840).

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

20056180 is a wasteful number, since it uses less digits than its factorization.

20056180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002818 (or 1002816 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 20056180 is about 4478.4126652197. The cubic root of 20056180 is about 271.6956840212.

The spelling of 20056180 in words is "twenty million, fifty-six thousand, one hundred eighty".