2275382728 has 8 divisors (see below), whose sum is σ = 4266342630. Its totient is φ = 1137691360.

The previous prime is 2275382723. The next prime is 2275382729. The reversal of 2275382728 is 8272835722.

It can be written as a sum of positive squares in only one way, i.e., 1303065604 + 972317124 = 36098^2 + 31182^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×2275382728³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2275382723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142211413 + ... + 142211428.

Almost surely, 2^2275382728 is an apocalyptic number.

It is an amenable number.

2275382728 is a deficient number, since it is larger than the sum of its proper divisors (1990959902).

2275382728 is a wasteful number, since it uses less digits than its factorization.

2275382728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284422847 (or 284422843 counting only the distinct ones).

The product of its digits is 752640, while the sum is 46.

The square root of 2275382728 is about 47700.9719817112. The cubic root of 2275382728 is about 1315.2798062943.

It can be divided in two parts, 2275 and 382728, that added together give a triangular number (385003 = T₈₇₇).

The spelling of 2275382728 in words is "two billion, two hundred seventy-five million, three hundred eighty-two thousand, seven hundred twenty-eight".