1448721 has 6 divisors (see below), whose sum is σ = 2092610. Its totient is φ = 965808.

The previous prime is 1448717. The next prime is 1448737. The reversal of 1448721 is 1278441.

It can be written as a sum of positive squares in only one way, i.e., 1040400 + 408321 = 1020^2 + 639^2 .

It is not a de Polignac number, because 1448721 - 2² = 1448717 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1448761) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 80476 + ... + 80493.

2^1448721 is an apocalyptic number.

It is an amenable number.

1448721 is a deficient number, since it is larger than the sum of its proper divisors (643889).

1448721 is a wasteful number, since it uses less digits than its factorization.

1448721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160975 (or 160972 counting only the distinct ones).

The product of its digits is 1792, while the sum is 27.

The square root of 1448721 is about 1203.6282648725. The cubic root of 1448721 is about 113.1518307796.

The spelling of 1448721 in words is "one million, four hundred forty-eight thousand, seven hundred twenty-one".