1244324656 has 40 divisors (see below), whose sum is σ = 2663695584. Its totient is φ = 560102400.

The previous prime is 1244324651. The next prime is 1244324677. The reversal of 1244324656 is 6564234421.

It is not an unprimeable number, because it can be changed into a prime (1244324651) 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 7 ways as a sum of consecutive naturals, for example, 93195 + ... + 105706.

Almost surely, 2^1244324656 is an apocalyptic number.

1244324656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1244324656 is an abundant number, since it is smaller than the sum of its proper divisors (1419370928).

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

1244324656 is a wasteful number, since it uses less digits than its factorization.

1244324656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198949 (or 198943 counting only the distinct ones).

The product of its digits is 138240, while the sum is 37.

The square root of 1244324656 is about 35274.9862650576. The cubic root of 1244324656 is about 1075.5845837230.

The spelling of 1244324656 in words is "one billion, two hundred forty-four million, three hundred twenty-four thousand, six hundred fifty-six".