1244345000 has 40 divisors (see below), whose sum is σ = 2915512050. Its totient is φ = 497736000.

The previous prime is 1244344999. The next prime is 1244345033. The reversal of 1244345000 is 5434421.

It can be written as a sum of positive squares in 5 ways, for example, as 168636196 + 1075708804 = 12986^2 + 32798^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 119435 + ... + 129434.

Almost surely, 2^1244345000 is an apocalyptic number.

1244345000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1244345000 is an abundant number, since it is smaller than the sum of its proper divisors (1671167050).

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

1244345000 is an equidigital number, since it uses as much as digits as its factorization.

1244345000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248895 (or 248876 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 1244345000 is about 35275.2746268544. The cubic root of 1244345000 is about 1075.5904454230.

Adding to 1244345000 its reverse (5434421), we get a palindrome (1249779421).

The spelling of 1244345000 in words is "one billion, two hundred forty-four million, three hundred forty-five thousand".