2319971328 has 88 divisors (see below), whose sum is σ = 6870714560. Its totient is φ = 773314560.

The previous prime is 2319971267. The next prime is 2319971341. The reversal of 2319971328 is 8231799132.

2319971328 is a `hidden beast` number, since 2 + 319 + 9 + 7 + 1 + 328 = 666.

It is a congruent number.

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, 14308 + ... + 69603.

Almost surely, 2^2319971328 is an apocalyptic number.

It is an amenable number.

2319971328 is an abundant number, since it is smaller than the sum of its proper divisors (4550743232).

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

2319971328 is an equidigital number, since it uses as much as digits as its factorization.

2319971328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83940 (or 83916 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 2319971328 is about 48166.0806792498. The cubic root of 2319971328 is about 1323.8157360481.

The spelling of 2319971328 in words is "two billion, three hundred nineteen million, nine hundred seventy-one thousand, three hundred twenty-eight".