1213330444 has 12 divisors (see below), whose sum is σ = 2138605000. Its totient is φ = 602300448.

The previous prime is 1213330439. The next prime is 1213330487. The reversal of 1213330444 is 4440333121.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1090569 + ... + 1091680.

Almost surely, 2^1213330444 is an apocalyptic number.

It is an amenable number.

1213330444 is a deficient number, since it is larger than the sum of its proper divisors (925274556).

1213330444 is a wasteful number, since it uses less digits than its factorization.

1213330444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2182392 (or 2182390 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 1213330444 is about 34832.8931327847. The cubic root of 1213330444 is about 1066.5790074230.

Adding to 1213330444 its reverse (4440333121), we get a palindrome (5653663565).

The spelling of 1213330444 in words is "one billion, two hundred thirteen million, three hundred thirty thousand, four hundred forty-four".