1213606344 has 16 divisors (see below), whose sum is σ = 3034015920. Its totient is φ = 404535440.

The previous prime is 1213606307. The next prime is 1213606357. The reversal of 1213606344 is 4436063121.

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, 25283442 + ... + 25283489.

It is an arithmetic number, because the mean of its divisors is an integer number (189625995).

Almost surely, 2^1213606344 is an apocalyptic number.

It is an amenable number.

1213606344 is an abundant number, since it is smaller than the sum of its proper divisors (1820409576).

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

1213606344 is a wasteful number, since it uses less digits than its factorization.

1213606344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50566940 (or 50566936 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 1213606344 is about 34836.8532448038. The cubic root of 1213606344 is about 1066.6598446612.

Adding to 1213606344 its reverse (4436063121), we get a palindrome (5649669465).

The spelling of 1213606344 in words is "one billion, two hundred thirteen million, six hundred six thousand, three hundred forty-four".