1444621 has 8 divisors (see below), whose sum is σ = 1492344. Its totient is φ = 1397760.

The previous prime is 1444613. The next prime is 1444633. The reversal of 1444621 is 1264441.

It can be written as a sum of positive squares in 4 ways, for example, as 422500 + 1022121 = 650^2 + 1011^2 .

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 1444621 - 2³ = 1444613 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1444592 and 1444601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444661) 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, 5001 + ... + 5281.

It is an arithmetic number, because the mean of its divisors is an integer number (186543).

2^1444621 is an apocalyptic number.

It is an amenable number.

1444621 is a deficient number, since it is larger than the sum of its proper divisors (47723).

1444621 is an equidigital number, since it uses as much as digits as its factorization.

1444621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431.

The product of its digits is 768, while the sum is 22.

The square root of 1444621 is about 1201.9238744613. The cubic root of 1444621 is about 113.0449869171.

The spelling of 1444621 in words is "one million, four hundred forty-four thousand, six hundred twenty-one".