1244253330 has 24 divisors (see below), whose sum is σ = 3235058892. Its totient is φ = 331800864.

The previous prime is 1244253277. The next prime is 1244253331. The reversal of 1244253330 is 333524421.

1244253330 is a `hidden beast` number, since 124 + 4 + 2 + 533 + 3 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1173542049 + 70711281 = 34257^2 + 8409^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1244253294 and 1244253303.

It is not an unprimeable number, because it can be changed into a prime (1244253331) 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 11 ways as a sum of consecutive naturals, for example, 6912429 + ... + 6912608.

Almost surely, 2^1244253330 is an apocalyptic number.

1244253330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1244253330 is an abundant number, since it is smaller than the sum of its proper divisors (1990805562).

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

1244253330 is a wasteful number, since it uses less digits than its factorization.

1244253330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13825050 (or 13825047 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 1244253330 is about 35273.9752508843. The cubic root of 1244253330 is about 1075.5640321166.

Adding to 1244253330 its reverse (333524421), we get a palindrome (1577777751).

The spelling of 1244253330 in words is "one billion, two hundred forty-four million, two hundred fifty-three thousand, three hundred thirty".