75644234 has 16 divisors (see below), whose sum is σ = 114883272. Its totient is φ = 37352448.

The previous prime is 75644207. The next prime is 75644269. The reversal of 75644234 is 43244657.

It can be written as a sum of positive squares in 4 ways, for example, as 9628609 + 66015625 = 3103^2 + 8125^2 .

It is a junction number, because it is equal to n+sod(n) for n = 75644194 and 75644203.

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 7 ways as a sum of consecutive naturals, for example, 97472 + ... + 98244.

Almost surely, 2^75644234 is an apocalyptic number.

75644234 is a deficient number, since it is larger than the sum of its proper divisors (39239038).

75644234 is a wasteful number, since it uses less digits than its factorization.

75644234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321.

The product of its digits is 80640, while the sum is 35.

The square root of 75644234 is about 8697.3693724022. The cubic root of 75644234 is about 422.9203761550.

The spelling of 75644234 in words is "seventy-five million, six hundred forty-four thousand, two hundred thirty-four".