75728332 has 12 divisors (see below), whose sum is σ = 135606856. Its totient is φ = 36983520.

The previous prime is 75728299. The next prime is 75728363. The reversal of 75728332 is 23382757.

It is a super-3 number, since 3×75728332³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 75728291 and 75728300.

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 3 ways as a sum of consecutive naturals, for example, 219969 + ... + 220312.

Almost surely, 2^75728332 is an apocalyptic number.

It is an amenable number.

75728332 is a deficient number, since it is larger than the sum of its proper divisors (59878524).

75728332 is a wasteful number, since it uses less digits than its factorization.

75728332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440328 (or 440326 counting only the distinct ones).

The product of its digits is 70560, while the sum is 37.

The square root of 75728332 is about 8702.2027096592. The cubic root of 75728332 is about 423.0770463267.

The spelling of 75728332 in words is "seventy-five million, seven hundred twenty-eight thousand, three hundred thirty-two".