1444428773 has 8 divisors (see below), whose sum is σ = 1586558400. Its totient is φ = 1308909888.

The previous prime is 1444428767. The next prime is 1444428779. The reversal of 1444428773 is 3778244441.

It is an interprime number because it is at equal distance from previous prime (1444428767) and next prime (1444428779).

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

It is a cyclic number.

It is not a de Polignac number, because 1444428773 - 2¹² = 1444424677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444428779) 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, 1652228 + ... + 1653101.

It is an arithmetic number, because the mean of its divisors is an integer number (198319800).

Almost surely, 2^1444428773 is an apocalyptic number.

It is an amenable number.

1444428773 is a deficient number, since it is larger than the sum of its proper divisors (142129627).

1444428773 is a wasteful number, since it uses less digits than its factorization.

1444428773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3305371.

The product of its digits is 602112, while the sum is 44.

The square root of 1444428773 is about 38005.6413312550. The cubic root of 1444428773 is about 1130.3997262324.

The spelling of 1444428773 in words is "one billion, four hundred forty-four million, four hundred twenty-eight thousand, seven hundred seventy-three".