752250728 has 8 divisors (see below), whose sum is σ = 1410470130. Its totient is φ = 376125360.

The previous prime is 752250713. The next prime is 752250757. The reversal of 752250728 is 827052257.

It can be written as a sum of positive squares in only one way, i.e., 659359684 + 92891044 = 25678^2 + 9638^2 .

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

It is a super-3 number, since 3×752250728³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 752250691 and 752250700.

It is an unprimeable number.

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, 47015663 + ... + 47015678.

Almost surely, 2^752250728 is an apocalyptic number.

It is an amenable number.

752250728 is a deficient number, since it is larger than the sum of its proper divisors (658219402).

752250728 is a wasteful number, since it uses less digits than its factorization.

752250728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94031347 (or 94031343 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 38.

The square root of 752250728 is about 27427.1895753101. The cubic root of 752250728 is about 909.4682430466.

The spelling of 752250728 in words is "seven hundred fifty-two million, two hundred fifty thousand, seven hundred twenty-eight".