1228016427 has 8 divisors (see below), whose sum is σ = 1786205760. Its totient is φ = 744252360.

The previous prime is 1228016407. The next prime is 1228016431. The reversal of 1228016427 is 7246108221.

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

It is not a de Polignac number, because 1228016427 - 2⁸ = 1228016171 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 37212619 = 1228016427 / (1 + 2 + 2 + 8 + 0 + 1 + 6 + 4 + 2 + 7).

It is not an unprimeable number, because it can be changed into a prime (1228016407) 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 7 ways as a sum of consecutive naturals, for example, 18606277 + ... + 18606342.

It is an arithmetic number, because the mean of its divisors is an integer number (223275720).

Almost surely, 2^1228016427 is an apocalyptic number.

1228016427 is a deficient number, since it is larger than the sum of its proper divisors (558189333).

1228016427 is a wasteful number, since it uses less digits than its factorization.

1228016427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37212633.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 1228016427 is about 35043.0653196891. The cubic root of 1228016427 is about 1070.8650026308.

The spelling of 1228016427 in words is "one billion, two hundred twenty-eight million, sixteen thousand, four hundred twenty-seven".