1216035344 has 10 divisors (see below), whose sum is σ = 2356068510. Its totient is φ = 608017664.

The previous prime is 1216035329. The next prime is 1216035349. The reversal of 1216035344 is 4435306121.

It can be written as a sum of positive squares in only one way, i.e., 1188870400 + 27164944 = 34480^2 + 5212^2 .

It is not an unprimeable number, because it can be changed into a prime (1216035349) 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 as a sum of consecutive naturals, namely, 38001089 + ... + 38001120.

It is an arithmetic number, because the mean of its divisors is an integer number (235606851).

Almost surely, 2^1216035344 is an apocalyptic number.

It is an amenable number.

1216035344 is a deficient number, since it is larger than the sum of its proper divisors (1140033166).

1216035344 is an equidigital number, since it uses as much as digits as its factorization.

1216035344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76002217 (or 76002211 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1216035344 is about 34871.6983239991. The cubic root of 1216035344 is about 1067.3710006153.

The spelling of 1216035344 in words is "one billion, two hundred sixteen million, thirty-five thousand, three hundred forty-four".