75446444 has 12 divisors (see below), whose sum is σ = 132332424. Its totient is φ = 37637184.

The previous prime is 75446443. The next prime is 75446453. The reversal of 75446444 is 44464457.

It is a happy number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 75446398 and 75446407.

It is not an unprimeable number, because it can be changed into a prime (75446443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19517 + ... + 23060.

It is an arithmetic number, because the mean of its divisors is an integer number (11027702).

Almost surely, 2^75446444 is an apocalyptic number.

It is an amenable number.

75446444 is a deficient number, since it is larger than the sum of its proper divisors (56885980).

75446444 is a wasteful number, since it uses less digits than its factorization.

75446444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43024 (or 43022 counting only the distinct ones).

The product of its digits is 215040, while the sum is 38.

The square root of 75446444 is about 8685.9912502834. The cubic root of 75446444 is about 422.5514454821.

The spelling of 75446444 in words is "seventy-five million, four hundred forty-six thousand, four hundred forty-four".