1224342985 has 16 divisors (see below), whose sum is σ = 1521838080. Its totient is φ = 944608320.

The previous prime is 1224342961. The next prime is 1224343013. The reversal of 1224342985 is 5892434221.

It is a de Polignac number, because none of the positive numbers 2^k-1224342985 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31936 + ... + 58894.

It is an arithmetic number, because the mean of its divisors is an integer number (95114880).

Almost surely, 2^1224342985 is an apocalyptic number.

It is an amenable number.

1224342985 is a deficient number, since it is larger than the sum of its proper divisors (297495095).

1224342985 is a wasteful number, since it uses less digits than its factorization.

1224342985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27288.

The product of its digits is 138240, while the sum is 40.

The square root of 1224342985 is about 34990.6128125816. The cubic root of 1224342985 is about 1069.7961544307.

The spelling of 1224342985 in words is "one billion, two hundred twenty-four million, three hundred forty-two thousand, nine hundred eighty-five".