1216046444 has 24 divisors (see below), whose sum is σ = 2207671200. Its totient is φ = 585401600.

The previous prime is 1216046413. The next prime is 1216046459. The reversal of 1216046444 is 4446406121.

It is a self number, because there is not a number n which added to its sum of digits gives 1216046444.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27044 + ... + 56244.

It is an arithmetic number, because the mean of its divisors is an integer number (91986300).

Almost surely, 2^1216046444 is an apocalyptic number.

It is an amenable number.

1216046444 is a deficient number, since it is larger than the sum of its proper divisors (991624756).

1216046444 is a wasteful number, since it uses less digits than its factorization.

1216046444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29593 (or 29591 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 1216046444 is about 34871.8574784883. The cubic root of 1216046444 is about 1067.3742482682.

The spelling of 1216046444 in words is "one billion, two hundred sixteen million, forty-six thousand, four hundred forty-four".