1244428823 has 32 divisors (see below), whose sum is σ = 1456220160. Its totient is φ = 1052156160.

The previous prime is 1244428793. The next prime is 1244428841. The reversal of 1244428823 is 3288244421.

It is not a de Polignac number, because 1244428823 - 2¹⁴ = 1244412439 is a prime.

It is a super-3 number, since 3×1244428823³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244428873) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2722811 + ... + 2723267.

It is an arithmetic number, because the mean of its divisors is an integer number (45506880).

Almost surely, 2^1244428823 is an apocalyptic number.

1244428823 is a deficient number, since it is larger than the sum of its proper divisors (211791337).

1244428823 is a wasteful number, since it uses less digits than its factorization.

1244428823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767.

The product of its digits is 98304, while the sum is 38.

The square root of 1244428823 is about 35276.4627336699. The cubic root of 1244428823 is about 1075.6145966012.

The spelling of 1244428823 in words is "one billion, two hundred forty-four million, four hundred twenty-eight thousand, eight hundred twenty-three".