1224807285 has 16 divisors (see below), whose sum is σ = 2110437504. Its totient is φ = 602981952.

The previous prime is 1224807281. The next prime is 1224807341. The reversal of 1224807285 is 5827084221.

It is not a de Polignac number, because 1224807285 - 2² = 1224807281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224807281) 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, 3140337 + ... + 3140726.

It is an arithmetic number, because the mean of its divisors is an integer number (131902344).

Almost surely, 2^1224807285 is an apocalyptic number.

1224807285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1224807285 is a deficient number, since it is larger than the sum of its proper divisors (885630219).

1224807285 is a wasteful number, since it uses less digits than its factorization.

1224807285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6281084.

The product of its (nonzero) digits is 71680, while the sum is 39.

The square root of 1224807285 is about 34997.2468202857. The cubic root of 1224807285 is about 1069.9313680613.

The spelling of 1224807285 in words is "one billion, two hundred twenty-four million, eight hundred seven thousand, two hundred eighty-five".