1224839 has 8 divisors (see below), whose sum is σ = 1527168. Its totient is φ = 954360.

The previous prime is 1224823. The next prime is 1224851. The reversal of 1224839 is 9384221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1224839 - 2⁴ = 1224823 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 (1224809) 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, 7877 + ... + 8030.

It is an arithmetic number, because the mean of its divisors is an integer number (190896).

2^1224839 is an apocalyptic number.

1224839 is a deficient number, since it is larger than the sum of its proper divisors (302329).

1224839 is a wasteful number, since it uses less digits than its factorization.

1224839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15925.

The product of its digits is 3456, while the sum is 29.

The square root of 1224839 is about 1106.7244462828. The cubic root of 1224839 is about 106.9940602869.

The spelling of 1224839 in words is "one million, two hundred twenty-four thousand, eight hundred thirty-nine".