75644434 has 8 divisors (see below), whose sum is σ = 119438640. Its totient is φ = 35831556.

The previous prime is 75644419. The next prime is 75644483. The reversal of 75644434 is 43444657.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 75644393 and 75644402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 995284 + ... + 995359.

It is an arithmetic number, because the mean of its divisors is an integer number (14929830).

Almost surely, 2^75644434 is an apocalyptic number.

75644434 is a deficient number, since it is larger than the sum of its proper divisors (43794206).

75644434 is a wasteful number, since it uses less digits than its factorization.

75644434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1990664.

The product of its digits is 161280, while the sum is 37.

The square root of 75644434 is about 8697.3808701241. The cubic root of 75644434 is about 422.9207488822.

The spelling of 75644434 in words is "seventy-five million, six hundred forty-four thousand, four hundred thirty-four".