75400868 has 6 divisors (see below), whose sum is σ = 131951526. Its totient is φ = 37700432.

The previous prime is 75400861. The next prime is 75400883. The reversal of 75400868 is 86800457.

It can be written as a sum of positive squares in only one way, i.e., 50580544 + 24820324 = 7112^2 + 4982^2 .

It is not an unprimeable number, because it can be changed into a prime (75400861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9425105 + ... + 9425112.

It is an arithmetic number, because the mean of its divisors is an integer number (21991921).

Almost surely, 2^75400868 is an apocalyptic number.

It is an amenable number.

75400868 is a deficient number, since it is larger than the sum of its proper divisors (56550658).

75400868 is a wasteful number, since it uses less digits than its factorization.

75400868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18850221 (or 18850219 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 75400868 is about 8683.3673191913. The cubic root of 75400868 is about 422.4663428016.

The spelling of 75400868 in words is "seventy-five million, four hundred thousand, eight hundred sixty-eight".