39444455146 has 16 divisors (see below), whose sum is σ = 60029459784. Its totient is φ = 19435106304.

The previous prime is 39444455143. The next prime is 39444455213. The reversal of 39444455146 is 64155444493.

It can be written as a sum of positive squares in 4 ways, for example, as 39158473225 + 285981921 = 197885^2 + 16911^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 39444455146.

It is not an unprimeable number, because it can be changed into a prime (39444455143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51180 + ... + 285496.

Almost surely, 2^39444455146 is an apocalyptic number.

39444455146 is a deficient number, since it is larger than the sum of its proper divisors (20585004638).

39444455146 is a wasteful number, since it uses less digits than its factorization.

39444455146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235545.

The product of its digits is 4147200, while the sum is 49.

The spelling of 39444455146 in words is "thirty-nine billion, four hundred forty-four million, four hundred fifty-five thousand, one hundred forty-six".