1244555244 has 36 divisors (see below), whose sum is σ = 3331017144. Its totient is φ = 390448512.

The previous prime is 1244555201. The next prime is 1244555267. The reversal of 1244555244 is 4425554421.

1244555244 is a `hidden beast` number, since 1 + 24 + 45 + 552 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1244555199 and 1244555208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1016182 + ... + 1017405.

It is an arithmetic number, because the mean of its divisors is an integer number (92528254).

Almost surely, 2^1244555244 is an apocalyptic number.

It is an amenable number.

1244555244 is an abundant number, since it is smaller than the sum of its proper divisors (2086461900).

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

1244555244 is a wasteful number, since it uses less digits than its factorization.

1244555244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2033614 (or 2033609 counting only the distinct ones).

The product of its digits is 128000, while the sum is 36.

The square root of 1244555244 is about 35278.2545486593. The cubic root of 1244555244 is about 1075.6510191125.

The spelling of 1244555244 in words is "one billion, two hundred forty-four million, five hundred fifty-five thousand, two hundred forty-four".