1224789146 has 64 divisors (see below), whose sum is σ = 2266983936. Its totient is φ = 484915200.

The previous prime is 1224789113. The next prime is 1224789149. The reversal of 1224789146 is 6419874221.

It is a junction number, because it is equal to n+sod(n) for n = 1224789097 and 1224789106.

It is not an unprimeable number, because it can be changed into a prime (1224789149) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1491416 + ... + 1492236.

It is an arithmetic number, because the mean of its divisors is an integer number (35421624).

Almost surely, 2^1224789146 is an apocalyptic number.

1224789146 is a deficient number, since it is larger than the sum of its proper divisors (1042194790).

1224789146 is a wasteful number, since it uses less digits than its factorization.

1224789146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007.

The product of its digits is 193536, while the sum is 44.

The square root of 1224789146 is about 34996.9876703696. The cubic root of 1224789146 is about 1069.9260862560.

The spelling of 1224789146 in words is "one billion, two hundred twenty-four million, seven hundred eighty-nine thousand, one hundred forty-six".