2187047320 has 16 divisors (see below), whose sum is σ = 4920856560. Its totient is φ = 874818912.

The previous prime is 2187047281. The next prime is 2187047321. The reversal of 2187047320 is 237407812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2187047321) 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, 27338052 + ... + 27338131.

It is an arithmetic number, because the mean of its divisors is an integer number (307553535).

Almost surely, 2^2187047320 is an apocalyptic number.

2187047320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2187047320 is an abundant number, since it is smaller than the sum of its proper divisors (2733809240).

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

2187047320 is a wasteful number, since it uses less digits than its factorization.

2187047320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54676194 (or 54676190 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 2187047320 is about 46765.8777315256. The cubic root of 2187047320 is about 1298.0339749718.

The spelling of 2187047320 in words is "two billion, one hundred eighty-seven million, forty-seven thousand, three hundred twenty".