1244437216 has 48 divisors (see below), whose sum is σ = 2758952448. Its totient is φ = 547401600.

The previous prime is 1244437193. The next prime is 1244437217. The reversal of 1244437216 is 6127344421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244437217) 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, 46110 + ... + 67933.

It is an arithmetic number, because the mean of its divisors is an integer number (57478176).

Almost surely, 2^1244437216 is an apocalyptic number.

1244437216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1244437216 is an abundant number, since it is smaller than the sum of its proper divisors (1514515232).

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

1244437216 is a wasteful number, since it uses less digits than its factorization.

1244437216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114095 (or 114087 counting only the distinct ones).

The product of its digits is 32256, while the sum is 34.

The square root of 1244437216 is about 35276.5816938093. The cubic root of 1244437216 is about 1075.6170147422.

The spelling of 1244437216 in words is "one billion, two hundred forty-four million, four hundred thirty-seven thousand, two hundred sixteen".