1444684081 has 9 divisors (see below), whose sum is σ = 1459622073. Its totient is φ = 1429898580.

The previous prime is 1444684079. The next prime is 1444684091. The reversal of 1444684081 is 1804864441.

It is a happy number.

The square root of 1444684081 is 38009.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 1444684081 - 2¹ = 1444684079 is a prime.

It is a super-2 number, since 2×1444684081² = 4174224187789629122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1444684001) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7259620 + ... + 7259818.

Almost surely, 2^1444684081 is an apocalyptic number.

1444684081 is the 38009-th square number.

1444684081 is the 19005-th centered octagonal number.

It is an amenable number.

1444684081 is a deficient number, since it is larger than the sum of its proper divisors (14937992).

1444684081 is an frugal number, since it uses more digits than its factorization.

1444684081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780 (or 390 counting only the distinct ones).

The product of its (nonzero) digits is 98304, while the sum is 40.

The cubic root of 1444684081 is about 1130.4663230529.

The spelling of 1444684081 in words is "one billion, four hundred forty-four million, six hundred eighty-four thousand, eighty-one".