1217464228 has 12 divisors (see below), whose sum is σ = 2131709440. Its totient is φ = 608404392.

The previous prime is 1217464211. The next prime is 1217464247. The reversal of 1217464228 is 8224647121.

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, 73476 + ... + 88507.

Almost surely, 2^1217464228 is an apocalyptic number.

It is an amenable number.

1217464228 is a deficient number, since it is larger than the sum of its proper divisors (914245212).

1217464228 is a wasteful number, since it uses less digits than its factorization.

1217464228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163866 (or 163864 counting only the distinct ones).

The product of its digits is 43008, while the sum is 37.

The square root of 1217464228 is about 34892.1800408057. The cubic root of 1217464228 is about 1067.7889030428.

The spelling of 1217464228 in words is "one billion, two hundred seventeen million, four hundred sixty-four thousand, two hundred twenty-eight".