1213436044 has 12 divisors (see below), whose sum is σ = 2137039744. Its totient is φ = 602853264.

The previous prime is 1213436033. The next prime is 1213436117. The reversal of 1213436044 is 4406343121.

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, 965484 + ... + 966739.

Almost surely, 2^1213436044 is an apocalyptic number.

It is an amenable number.

1213436044 is a deficient number, since it is larger than the sum of its proper divisors (923603700).

1213436044 is a wasteful number, since it uses less digits than its factorization.

1213436044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1932384 (or 1932382 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 1213436044 is about 34834.4089084342. The cubic root of 1213436044 is about 1066.6099491110.

Adding to 1213436044 its reverse (4406343121), we get a palindrome (5619779165).

The spelling of 1213436044 in words is "one billion, two hundred thirteen million, four hundred thirty-six thousand, forty-four".