2248688728 has 32 divisors (see below), whose sum is σ = 4953407760. Its totient is φ = 943505280.

The previous prime is 2248688723. The next prime is 2248688759. The reversal of 2248688728 is 8278868422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2248688723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 981675 + ... + 983962.

Almost surely, 2^2248688728 is an apocalyptic number.

It is an amenable number.

2248688728 is an abundant number, since it is smaller than the sum of its proper divisors (2704719032).

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

2248688728 is a wasteful number, since it uses less digits than its factorization.

2248688728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1965667 (or 1965663 counting only the distinct ones).

The product of its digits is 5505024, while the sum is 55.

The square root of 2248688728 is about 47420.3408676066. The cubic root of 2248688728 is about 1310.1160917259.

The spelling of 2248688728 in words is "two billion, two hundred forty-eight million, six hundred eighty-eight thousand, seven hundred twenty-eight".