1444921 has 8 divisors (see below), whose sum is σ = 1499904. Its totient is φ = 1391040.

The previous prime is 1444913. The next prime is 1444943. The reversal of 1444921 is 1294441.

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 1444921 - 2³ = 1444913 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444901) 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, 3121 + ... + 3553.

It is an arithmetic number, because the mean of its divisors is an integer number (187488).

2^1444921 is an apocalyptic number.

It is an amenable number.

1444921 is a deficient number, since it is larger than the sum of its proper divisors (54983).

1444921 is an equidigital number, since it uses as much as digits as its factorization.

1444921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 551.

The product of its digits is 1152, while the sum is 25.

The square root of 1444921 is about 1202.0486678999. The cubic root of 1444921 is about 113.0528116104.

The spelling of 1444921 in words is "one million, four hundred forty-four thousand, nine hundred twenty-one".