1444428774 has 40 divisors (see below), whose sum is σ = 3252006648. Its totient is φ = 479183040.

The previous prime is 1444428767. The next prime is 1444428779. The reversal of 1444428774 is 4778244441.

It is a super-3 number, since 3×1444428774³ (a number of 28 digits) contains 333 as substring.

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 19 ways as a sum of consecutive naturals, for example, 13054 + ... + 55310.

Almost surely, 2^1444428774 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1444428774, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1626003324).

1444428774 is an abundant number, since it is smaller than the sum of its proper divisors (1807577874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1444428774 is a wasteful number, since it uses less digits than its factorization.

1444428774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42482 (or 42473 counting only the distinct ones).

The product of its digits is 802816, while the sum is 45.

The square root of 1444428774 is about 38005.6413444110. The cubic root of 1444428774 is about 1130.3997264932.

The spelling of 1444428774 in words is "one billion, four hundred forty-four million, four hundred twenty-eight thousand, seven hundred seventy-four".