2305216920 has 64 divisors (see below), whose sum is σ = 7102573920. Its totient is φ = 598109184.

The previous prime is 2305216891. The next prime is 2305216961. The reversal of 2305216920 is 296125032.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255157 + ... + 264036.

Almost surely, 2^2305216920 is an apocalyptic number.

2305216920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2305216920 is an abundant number, since it is smaller than the sum of its proper divisors (4797357000).

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

2305216920 is a wasteful number, since it uses less digits than its factorization.

2305216920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519244 (or 519240 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 2305216920 is about 48012.6745766157. The cubic root of 2305216920 is about 1321.0033922707.

The spelling of 2305216920 in words is "two billion, three hundred five million, two hundred sixteen thousand, nine hundred twenty".