1444473668 has 24 divisors (see below), whose sum is σ = 2782940160. Its totient is φ = 650553120.

The previous prime is 1444473661. The next prime is 1444473671. The reversal of 1444473668 is 8663744441.

It is not an unprimeable number, because it can be changed into a prime (1444473661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145796 + ... + 155387.

It is an arithmetic number, because the mean of its divisors is an integer number (115955840).

Almost surely, 2^1444473668 is an apocalyptic number.

It is an amenable number.

1444473668 is a deficient number, since it is larger than the sum of its proper divisors (1338466492).

1444473668 is a wasteful number, since it uses less digits than its factorization.

1444473668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301307 (or 301305 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 47.

The square root of 1444473668 is about 38006.2319626663. The cubic root of 1444473668 is about 1130.4114376140.

The spelling of 1444473668 in words is "one billion, four hundred forty-four million, four hundred seventy-three thousand, six hundred sixty-eight".