2231709312 has 192 divisors, whose sum is σ = 6983776800. Its totient is φ = 629508096.

The previous prime is 2231709307. The next prime is 2231709329. The reversal of 2231709312 is 2139071322.

It is a tau number, because it is divible by the number of its divisors (192).

It is a super-3 number, since 3×2231709312³ (a number of 29 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2231709312.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1561014 + ... + 1562442.

Almost surely, 2^2231709312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2231709312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3491888400).

2231709312 is an abundant number, since it is smaller than the sum of its proper divisors (4752067488).

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

2231709312 is a wasteful number, since it uses less digits than its factorization.

2231709312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1543 (or 1524 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 2231709312 is about 47240.9706928213. The cubic root of 2231709312 is about 1306.8102789999.

The spelling of 2231709312 in words is "two billion, two hundred thirty-one million, seven hundred nine thousand, three hundred twelve".