2298725728 has 48 divisors (see below), whose sum is σ = 4899164256. Its totient is φ = 1055416320.

The previous prime is 2298725717. The next prime is 2298725747. The reversal of 2298725728 is 8275278922.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65973 + ... + 94603.

It is an arithmetic number, because the mean of its divisors is an integer number (102065922).

Almost surely, 2^2298725728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2298725728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2449582128).

2298725728 is an abundant number, since it is smaller than the sum of its proper divisors (2600438528).

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

2298725728 is a wasteful number, since it uses less digits than its factorization.

2298725728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28847 (or 28839 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 52.

The square root of 2298725728 is about 47945.0281885411. The cubic root of 2298725728 is about 1319.7623018579.

The spelling of 2298725728 in words is "two billion, two hundred ninety-eight million, seven hundred twenty-five thousand, seven hundred twenty-eight".