75628388 has 18 divisors (see below), whose sum is σ = 145476198. Its totient is φ = 34376320.

The previous prime is 75628369. The next prime is 75628409. The reversal of 75628388 is 88382657.

It can be written as a sum of positive squares in only one way, i.e., 46812964 + 28815424 = 6842^2 + 5368^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77645 + ... + 78612.

It is an arithmetic number, because the mean of its divisors is an integer number (8082011).

Almost surely, 2^75628388 is an apocalyptic number.

It is an amenable number.

75628388 is a deficient number, since it is larger than the sum of its proper divisors (69847810).

75628388 is a wasteful number, since it uses less digits than its factorization.

75628388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156283 (or 156270 counting only the distinct ones).

The product of its digits is 645120, while the sum is 47.

The square root of 75628388 is about 8696.4583595852. The cubic root of 75628388 is about 422.8908428871.

The spelling of 75628388 in words is "seventy-five million, six hundred twenty-eight thousand, three hundred eighty-eight".