2180005460 has 24 divisors (see below), whose sum is σ = 4582936680. Its totient is φ = 871064064.

The previous prime is 2180005439. The next prime is 2180005469. The reversal of 2180005460 is 645000812.

It can be written as a sum of positive squares in 4 ways, for example, as 268042384 + 1911963076 = 16372^2 + 43726^2 .

2180005460 is a modest number, since divided by 5460 gives 2180 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2180005469) 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, 39425 + ... + 76904.

It is an arithmetic number, because the mean of its divisors is an integer number (190955695).

Almost surely, 2^2180005460 is an apocalyptic number.

2180005460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2180005460 is an abundant number, since it is smaller than the sum of its proper divisors (2402931220).

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

2180005460 is a wasteful number, since it uses less digits than its factorization.

2180005460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117275 (or 117273 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 2180005460 is about 46690.5285898543. The cubic root of 2180005460 is about 1296.6393394878.

The spelling of 2180005460 in words is "two billion, one hundred eighty million, five thousand, four hundred sixty".