1228428458 has 16 divisors (see below), whose sum is σ = 1925064360. Its totient is φ = 587160000.

The previous prime is 1228428427. The next prime is 1228428493. The reversal of 1228428458 is 8548248221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1214313409 + 14115049 = 34847^2 + 3757^2 .

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 7 ways as a sum of consecutive naturals, for example, 98993 + ... + 110708.

Almost surely, 2^1228428458 is an apocalyptic number.

1228428458 is a deficient number, since it is larger than the sum of its proper divisors (696635902).

1228428458 is a wasteful number, since it uses less digits than its factorization.

1228428458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209833.

The product of its digits is 327680, while the sum is 44.

The square root of 1228428458 is about 35048.9437501332. The cubic root of 1228428458 is about 1070.9847567941.

The spelling of 1228428458 in words is "one billion, two hundred twenty-eight million, four hundred twenty-eight thousand, four hundred fifty-eight".