1228790049 has 8 divisors (see below), whose sum is σ = 1678347552. Its totient is φ = 799212960.

The previous prime is 1228790047. The next prime is 1228790053. The reversal of 1228790049 is 9400978221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1228790049 - 2¹ = 1228790047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1228790047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4994959 + ... + 4995204.

It is an arithmetic number, because the mean of its divisors is an integer number (209793444).

Almost surely, 2^1228790049 is an apocalyptic number.

It is an amenable number.

1228790049 is a deficient number, since it is larger than the sum of its proper divisors (449557503).

1228790049 is an equidigital number, since it uses as much as digits as its factorization.

1228790049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9990207.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 1228790049 is about 35054.1017428774. The cubic root of 1228790049 is about 1071.0898288358.

The spelling of 1228790049 in words is "one billion, two hundred twenty-eight million, seven hundred ninety thousand, forty-nine".