1244250240 has 64 divisors (see below), whose sum is σ = 3966053760. Its totient is φ = 331799552.

The previous prime is 1244250239. The next prime is 1244250253. The reversal of 1244250240 is 420524421.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1244250240.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322104 + ... + 325943.

It is an arithmetic number, because the mean of its divisors is an integer number (61969590).

Almost surely, 2^1244250240 is an apocalyptic number.

1244250240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1244250240 is an abundant number, since it is smaller than the sum of its proper divisors (2721803520).

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

1244250240 is an equidigital number, since it uses as much as digits as its factorization.

1244250240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648069 (or 648057 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

The square root of 1244250240 is about 35273.9314508604. The cubic root of 1244250240 is about 1075.5631417578.

Adding to 1244250240 its reverse (420524421), we get a palindrome (1664774661).

The spelling of 1244250240 in words is "one billion, two hundred forty-four million, two hundred fifty thousand, two hundred forty".