1244416 has 18 divisors (see below), whose sum is σ = 2484482. Its totient is φ = 622080.

The previous prime is 1244401. The next prime is 1244423. The reversal of 1244416 is 6144421.

It can be written as a sum of positive squares in only one way, i.e., 1218816 + 25600 = 1104^2 + 160^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2175 + ... + 2686.

2^1244416 is an apocalyptic number.

1244416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1244416 is a deficient number, since it is larger than the sum of its proper divisors (1240066).

1244416 is an frugal number, since it uses more digits than its factorization.

1244416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4877 (or 4863 counting only the distinct ones).

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

The square root of 1244416 is about 1115.5339528674. The cubic root of 1244416 is about 107.5610902094.

Adding to 1244416 its reverse (6144421), we get a palindrome (7388837).

The spelling of 1244416 in words is "one million, two hundred forty-four thousand, four hundred sixteen".