2320309680 has 80 divisors (see below), whose sum is σ = 7746275040. Its totient is φ = 571152384.

The previous prime is 2320309661. The next prime is 2320309687. The reversal of 2320309680 is 869030232.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×2320309680² = 10767674022203404800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2320309687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 368725 + ... + 374964.

It is an arithmetic number, because the mean of its divisors is an integer number (96828438).

Almost surely, 2^2320309680 is an apocalyptic number.

2320309680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2320309680 is an abundant number, since it is smaller than the sum of its proper divisors (5425965360).

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

2320309680 is a wasteful number, since it uses less digits than its factorization.

2320309680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743718 (or 743712 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 2320309680 is about 48169.5928984250. The cubic root of 2320309680 is about 1323.8800894194.

The spelling of 2320309680 in words is "two billion, three hundred twenty million, three hundred nine thousand, six hundred eighty".