2263320728 has 16 divisors (see below), whose sum is σ = 4272210000. Its totient is φ = 1124064736.

The previous prime is 2263320713. The next prime is 2263320733. The reversal of 2263320728 is 8270233622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 948188 + ... + 950571.

It is an arithmetic number, because the mean of its divisors is an integer number (267013125).

Almost surely, 2^2263320728 is an apocalyptic number.

It is an amenable number.

2263320728 is a deficient number, since it is larger than the sum of its proper divisors (2008889272).

2263320728 is a wasteful number, since it uses less digits than its factorization.

2263320728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1898914 (or 1898910 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 2263320728 is about 47574.3704950470. The cubic root of 2263320728 is about 1312.9515501253.

The spelling of 2263320728 in words is "two billion, two hundred sixty-three million, three hundred twenty thousand, seven hundred twenty-eight".