2180862480 has 40 divisors (see below), whose sum is σ = 6760674432. Its totient is φ = 581563264.

The previous prime is 2180862479. The next prime is 2180862487. The reversal of 2180862480 is 842680812.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×2180862480² = 9512322313343500800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2180862487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4543224 + ... + 4543703.

Almost surely, 2^2180862480 is an apocalyptic number.

2180862480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2180862480 is an abundant number, since it is smaller than the sum of its proper divisors (4579811952).

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

2180862480 is a wasteful number, since it uses less digits than its factorization.

2180862480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9086943 (or 9086937 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 39.

The square root of 2180862480 is about 46699.7053523895. The cubic root of 2180862480 is about 1296.8092320681.

The spelling of 2180862480 in words is "two billion, one hundred eighty million, eight hundred sixty-two thousand, four hundred eighty".