1242527744 has 48 divisors (see below), whose sum is σ = 2518785360. Its totient is φ = 612679680.

The previous prime is 1242527731. The next prime is 1242527777. The reversal of 1242527744 is 4477252421.

It is a junction number, because it is equal to n+sod(n) for n = 1242527698 and 1242527707.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145349 + ... + 153659.

It is an arithmetic number, because the mean of its divisors is an integer number (52474695).

Almost surely, 2^1242527744 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1242527744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1259392680).

1242527744 is an abundant number, since it is smaller than the sum of its proper divisors (1276257616).

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

1242527744 is an frugal number, since it uses more digits than its factorization.

1242527744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8406 (or 8386 counting only the distinct ones).

The product of its digits is 125440, while the sum is 38.

The square root of 1242527744 is about 35249.5070036447. The cubic root of 1242527744 is about 1075.0665887002.

The spelling of 1242527744 in words is "one billion, two hundred forty-two million, five hundred twenty-seven thousand, seven hundred forty-four".