1226672648 has 16 divisors (see below), whose sum is σ = 2309558460. Its totient is φ = 610790400.

The previous prime is 1226672633. The next prime is 1226672659. The reversal of 1226672648 is 8462766221.

It can be written as a sum of positive squares in 2 ways, for example, as 1225140004 + 1532644 = 35002^2 + 1238^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1226672599 and 1226672608.

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, 316193 + ... + 320048.

Almost surely, 2^1226672648 is an apocalyptic number.

It is an amenable number.

1226672648 is a deficient number, since it is larger than the sum of its proper divisors (1082885812).

1226672648 is a wasteful number, since it uses less digits than its factorization.

1226672648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636488 (or 636484 counting only the distinct ones).

The product of its digits is 387072, while the sum is 44.

The square root of 1226672648 is about 35023.8868202831. The cubic root of 1226672648 is about 1070.4742556570.

The spelling of 1226672648 in words is "one billion, two hundred twenty-six million, six hundred seventy-two thousand, six hundred forty-eight".