1444880 has 20 divisors (see below), whose sum is σ = 3359532. Its totient is φ = 577920.

The previous prime is 1444873. The next prime is 1444897. The reversal of 1444880 is 884441.

It can be written as a sum of positive squares in 2 ways, for example, as 861184 + 583696 = 928^2 + 764^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-3 number, since 3×1444880³ = 9049333495266816000, which contains 333 as substring.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8951 + ... + 9110.

2^1444880 is an apocalyptic number.

1444880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1444880 is an abundant number, since it is smaller than the sum of its proper divisors (1914652).

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

1444880 is a wasteful number, since it uses less digits than its factorization.

1444880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18074 (or 18068 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 29.

The square root of 1444880 is about 1202.0316135610. The cubic root of 1444880 is about 113.0517422995.

The spelling of 1444880 in words is "one million, four hundred forty-four thousand, eight hundred eighty".