2181477282 has 16 divisors (see below), whose sum is σ = 4372383360. Its totient is φ = 725587632.

The previous prime is 2181477253. The next prime is 2181477307. The reversal of 2181477282 is 2827741812.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389857 + ... + 395412.

It is an arithmetic number, because the mean of its divisors is an integer number (273273960).

Almost surely, 2^2181477282 is an apocalyptic number.

2181477282 is an abundant number, since it is smaller than the sum of its proper divisors (2190906078).

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

2181477282 is a wasteful number, since it uses less digits than its factorization.

2181477282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785737.

The product of its digits is 100352, while the sum is 42.

The square root of 2181477282 is about 46706.2873925984. The cubic root of 2181477282 is about 1296.9310808028.

The spelling of 2181477282 in words is "two billion, one hundred eighty-one million, four hundred seventy-seven thousand, two hundred eighty-two".