1224407805 has 16 divisors (see below), whose sum is σ = 2006835264. Its totient is φ = 637089920.

The previous prime is 1224407803. The next prime is 1224407827. The reversal of 1224407805 is 5087044221.

It is not a de Polignac number, because 1224407805 - 2¹ = 1224407803 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224407801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 994839 + ... + 996068.

It is an arithmetic number, because the mean of its divisors is an integer number (125427204).

Almost surely, 2^1224407805 is an apocalyptic number.

1224407805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1224407805 is a deficient number, since it is larger than the sum of its proper divisors (782427459).

1224407805 is a wasteful number, since it uses less digits than its factorization.

1224407805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990956.

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 1224407805 is about 34991.5390487472. The cubic root of 1224407805 is about 1069.8150333897.

The spelling of 1224407805 in words is "one billion, two hundred twenty-four million, four hundred seven thousand, eight hundred five".