2306978720 has 48 divisors (see below), whose sum is σ = 5453374248. Its totient is φ = 922260480.

The previous prime is 2306978717. The next prime is 2306978731. The reversal of 2306978720 is 278796032.

It can be written as a sum of positive squares in 4 ways, for example, as 2160762256 + 146216464 = 46484^2 + 12092^2 .

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, 393410 + ... + 399230.

Almost surely, 2^2306978720 is an apocalyptic number.

2306978720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2306978720 is an abundant number, since it is smaller than the sum of its proper divisors (3146395528).

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

2306978720 is a wasteful number, since it uses less digits than its factorization.

2306978720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8313 (or 8305 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 2306978720 is about 48031.0183110873. The cubic root of 2306978720 is about 1321.3398394404.

The spelling of 2306978720 in words is "two billion, three hundred six million, nine hundred seventy-eight thousand, seven hundred twenty".