1228446356 has 12 divisors (see below), whose sum is σ = 2153128992. Its totient is φ = 613266648.

The previous prime is 1228446337. The next prime is 1228446371. The reversal of 1228446356 is 6536448221.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 236240 + ... + 241383.

It is an arithmetic number, because the mean of its divisors is an integer number (179427416).

Almost surely, 2^1228446356 is an apocalyptic number.

It is an amenable number.

1228446356 is a deficient number, since it is larger than the sum of its proper divisors (924682636).

1228446356 is a wasteful number, since it uses less digits than its factorization.

1228446356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478270 (or 478268 counting only the distinct ones).

The product of its digits is 276480, while the sum is 41.

The square root of 1228446356 is about 35049.1990778677. The cubic root of 1228446356 is about 1070.9899581259.

The spelling of 1228446356 in words is "one billion, two hundred twenty-eight million, four hundred forty-six thousand, three hundred fifty-six".