2271432980 has 18 divisors (see below), whose sum is σ = 4770456894. Its totient is φ = 908487936.

The previous prime is 2271432979. The next prime is 2271433007. The reversal of 2271432980 is 892341722.

It can be written as a sum of positive squares in 3 ways, for example, as 118287376 + 2153145604 = 10876^2 + 46402^2 .

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 207812 + ... + 218468.

It is an arithmetic number, because the mean of its divisors is an integer number (265025383).

Almost surely, 2^2271432980 is an apocalyptic number.

2271432980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2271432980 is an abundant number, since it is smaller than the sum of its proper divisors (2499023914).

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

2271432980 is an frugal number, since it uses more digits than its factorization.

2271432980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21323 (or 10664 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 2271432980 is about 47659.5528724305. The cubic root of 2271432980 is about 1314.5183178981.

The spelling of 2271432980 in words is "two billion, two hundred seventy-one million, four hundred thirty-two thousand, nine hundred eighty".