1213334452 has 48 divisors (see below), whose sum is σ = 2449137600. Its totient is φ = 520162560.

The previous prime is 1213334431. The next prime is 1213334461. The reversal of 1213334452 is 2544333121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1213334452.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 191674 + ... + 197902.

It is an arithmetic number, because the mean of its divisors is an integer number (51023700).

Almost surely, 2^1213334452 is an apocalyptic number.

It is an amenable number.

1213334452 is an abundant number, since it is smaller than the sum of its proper divisors (1235803148).

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

1213334452 is a wasteful number, since it uses less digits than its factorization.

1213334452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6496 (or 6494 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 1213334452 is about 34832.9506645647. The cubic root of 1213334452 is about 1066.5801818335.

Adding to 1213334452 its reverse (2544333121), we get a palindrome (3757667573).

The spelling of 1213334452 in words is "one billion, two hundred thirteen million, three hundred thirty-four thousand, four hundred fifty-two".