1244340828 has 18 divisors (see below), whose sum is σ = 3145417184. Its totient is φ = 414780264.

The previous prime is 1244340827. The next prime is 1244340829. The reversal of 1244340828 is 8280434421.

1244340828 is a `hidden beast` number, since 1 + 244 + 3 + 408 + 2 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (1244340827) and next prime (1244340829).

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 34565023 = 1244340828 / (1 + 2 + 4 + 4 + 3 + 4 + 0 + 8 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 1244340792 and 1244340801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244340827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17282476 + ... + 17282547.

Almost surely, 2^1244340828 is an apocalyptic number.

1244340828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1244340828 is an abundant number, since it is smaller than the sum of its proper divisors (1901076356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1244340828 is a wasteful number, since it uses less digits than its factorization.

1244340828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34565033 (or 34565028 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 36.

The square root of 1244340828 is about 35275.2154919003. The cubic root of 1244340828 is about 1075.5892433533.

The spelling of 1244340828 in words is "one billion, two hundred forty-four million, three hundred forty thousand, eight hundred twenty-eight".