1228963738 has 32 divisors (see below), whose sum is σ = 2029847040. Its totient is φ = 555453360.

The previous prime is 1228963733. The next prime is 1228963753. The reversal of 1228963738 is 8373698221.

It is a junction number, because it is equal to n+sod(n) for n = 1228963691 and 1228963700.

It is not an unprimeable number, because it can be changed into a prime (1228963733) 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, 406653 + ... + 409663.

It is an arithmetic number, because the mean of its divisors is an integer number (63432720).

Almost surely, 2^1228963738 is an apocalyptic number.

1228963738 is a deficient number, since it is larger than the sum of its proper divisors (800883302).

1228963738 is a wasteful number, since it uses less digits than its factorization.

1228963738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3522.

The product of its digits is 870912, while the sum is 49.

The square root of 1228963738 is about 35056.5790972251. The cubic root of 1228963738 is about 1071.1402925031.

The spelling of 1228963738 in words is "one billion, two hundred twenty-eight million, nine hundred sixty-three thousand, seven hundred thirty-eight".