2236734728 has 36 divisors (see below), whose sum is σ = 4390186815. Its totient is φ = 1068271248.

The previous prime is 2236734697. The next prime is 2236734733. The reversal of 2236734728 is 8274376322.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 1118367364 + 1118367364 = 33442^2 + 33442^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=33442.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3076301 + ... + 3077027.

Almost surely, 2^2236734728 is an apocalyptic number.

It is an amenable number.

2236734728 is a deficient number, since it is larger than the sum of its proper divisors (2153452087).

2236734728 is an frugal number, since it uses more digits than its factorization.

2236734728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1506 (or 752 counting only the distinct ones).

The product of its digits is 677376, while the sum is 44.

The square root of 2236734728 is about 47294.1299528810. The cubic root of 2236734728 is about 1307.7904457815.

The spelling of 2236734728 in words is "two billion, two hundred thirty-six million, seven hundred thirty-four thousand, seven hundred twenty-eight".