444755642 has 12 divisors (see below), whose sum is σ = 681636570. Its totient is φ = 217644216.

The previous prime is 444755627. The next prime is 444755657. The reversal of 444755642 is 246557444.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (444755627) and next prime (444755657).

It can be written as a sum of positive squares in only one way, i.e., 275261281 + 169494361 = 16591^2 + 13019^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 444755642.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45917 + ... + 54752.

Almost surely, 2^444755642 is an apocalyptic number.

444755642 is a deficient number, since it is larger than the sum of its proper divisors (236880928).

444755642 is a wasteful number, since it uses less digits than its factorization.

444755642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100765 (or 100718 counting only the distinct ones).

The product of its digits is 537600, while the sum is 41.

The square root of 444755642 is about 21089.2304743440. The cubic root of 444755642 is about 763.3209029501.

The spelling of 444755642 in words is "four hundred forty-four million, seven hundred fifty-five thousand, six hundred forty-two".