2180117460 has 48 divisors (see below), whose sum is σ = 6127583616. Its totient is φ = 579149952.

The previous prime is 2180117453. The next prime is 2180117473. The reversal of 2180117460 is 647110812.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53299 + ... + 84858.

It is an arithmetic number, because the mean of its divisors is an integer number (127657992).

Almost surely, 2^2180117460 is an apocalyptic number.

2180117460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2180117460 is an abundant number, since it is smaller than the sum of its proper divisors (3947466156).

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

2180117460 is a wasteful number, since it uses less digits than its factorization.

2180117460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138432 (or 138430 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 2180117460 is about 46691.7279611710. The cubic root of 2180117460 is about 1296.6615444962.

The spelling of 2180117460 in words is "two billion, one hundred eighty million, one hundred seventeen thousand, four hundred sixty".