2230238728 has 16 divisors (see below), whose sum is σ = 4260598380. Its totient is φ = 1094079168.

The previous prime is 2230238719. The next prime is 2230238749. The reversal of 2230238728 is 8278320322.

It can be written as a sum of positive squares in 2 ways, for example, as 2212949764 + 17288964 = 47042^2 + 4158^2 .

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, 2629575 + ... + 2630422.

Almost surely, 2^2230238728 is an apocalyptic number.

It is an amenable number.

2230238728 is a deficient number, since it is larger than the sum of its proper divisors (2030359652).

2230238728 is a wasteful number, since it uses less digits than its factorization.

2230238728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5260056 (or 5260052 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 2230238728 is about 47225.4034180757. The cubic root of 2230238728 is about 1306.5231752167.

The spelling of 2230238728 in words is "two billion, two hundred thirty million, two hundred thirty-eight thousand, seven hundred twenty-eight".