1227396049 has 12 divisors (see below), whose sum is σ = 1382032260. Its totient is φ = 1088595200.

The previous prime is 1227396043. The next prime is 1227396091. The reversal of 1227396049 is 9406937221.

It can be written as a sum of positive squares in 2 ways, for example, as 699867025 + 527529024 = 26455^2 + 22968^2 .

It is not a de Polignac number, because 1227396049 - 2³ = 1227396041 is a prime.

It is a super-2 number, since 2×1227396049² = 3013002122201620802, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1227395996 and 1227396014.

It is not an unprimeable number, because it can be changed into a prime (1227396041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118744 + ... + 128665.

It is an arithmetic number, because the mean of its divisors is an integer number (115169355).

Almost surely, 2^1227396049 is an apocalyptic number.

It is an amenable number.

1227396049 is a deficient number, since it is larger than the sum of its proper divisors (154636211).

1227396049 is a wasteful number, since it uses less digits than its factorization.

1227396049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247472 (or 247461 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 1227396049 is about 35034.2125500203. The cubic root of 1227396049 is about 1070.6846432106.

The spelling of 1227396049 in words is "one billion, two hundred twenty-seven million, three hundred ninety-six thousand, forty-nine".