1224620552 has 32 divisors (see below), whose sum is σ = 2338037400. Its totient is φ = 601219584.

The previous prime is 1224620549. The next prime is 1224620569. The reversal of 1224620552 is 2550264221.

It can be written as a sum of positive squares in 4 ways, for example, as 1113823876 + 110796676 = 33374^2 + 10526^2 .

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, 129158 + ... + 138314.

Almost surely, 2^1224620552 is an apocalyptic number.

It is an amenable number.

1224620552 is a deficient number, since it is larger than the sum of its proper divisors (1113416848).

1224620552 is a wasteful number, since it uses less digits than its factorization.

1224620552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9465 (or 9461 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 1224620552 is about 34994.5788944516. The cubic root of 1224620552 is about 1069.8769917114.

Adding to 1224620552 its reverse (2550264221), we get a palindrome (3774884773).

The spelling of 1224620552 in words is "one billion, two hundred twenty-four million, six hundred twenty thousand, five hundred fifty-two".