75745394 has 12 divisors (see below), whose sum is σ = 118774446. Its totient is φ = 36225552.

The previous prime is 75745391. The next prime is 75745433. The reversal of 75745394 is 49354757.

It can be written as a sum of positive squares in only one way, i.e., 66667225 + 9078169 = 8165^2 + 3013^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (75745391) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 34739 + ... + 36854.

Almost surely, 2^75745394 is an apocalyptic number.

75745394 is a deficient number, since it is larger than the sum of its proper divisors (43029052).

75745394 is a wasteful number, since it uses less digits than its factorization.

75745394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71641 (or 71618 counting only the distinct ones).

The product of its digits is 529200, while the sum is 44.

The square root of 75745394 is about 8703.1829809559. The cubic root of 75745394 is about 423.1088177845.

The spelling of 75745394 in words is "seventy-five million, seven hundred forty-five thousand, three hundred ninety-four".