1228041793 has 4 divisors (see below), whose sum is σ = 1339681968. Its totient is φ = 1116401620.

The previous prime is 1228041761. The next prime is 1228041797. The reversal of 1228041793 is 3971408221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3971408221 = 11 ⋅361037111.

It is a cyclic number.

It is not a de Polignac number, because 1228041793 - 2⁵ = 1228041761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1228041797) 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 3 ways as a sum of consecutive naturals, for example, 55820071 + ... + 55820092.

It is an arithmetic number, because the mean of its divisors is an integer number (334920492).

Almost surely, 2^1228041793 is an apocalyptic number.

It is an amenable number.

1228041793 is a deficient number, since it is larger than the sum of its proper divisors (111640175).

1228041793 is a wasteful number, since it uses less digits than its factorization.

1228041793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111640174.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 1228041793 is about 35043.4272439212. The cubic root of 1228041793 is about 1070.8723758694.

The spelling of 1228041793 in words is "one billion, two hundred twenty-eight million, forty-one thousand, seven hundred ninety-three".