1228961422 has 16 divisors (see below), whose sum is σ = 1993561920. Its totient is φ = 564836832.

The previous prime is 1228961417. The next prime is 1228961431. The reversal of 1228961422 is 2241698221.

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 7 ways as a sum of consecutive naturals, for example, 92673 + ... + 105100.

It is an arithmetic number, because the mean of its divisors is an integer number (124597620).

Almost surely, 2^1228961422 is an apocalyptic number.

1228961422 is a deficient number, since it is larger than the sum of its proper divisors (764600498).

1228961422 is a wasteful number, since it uses less digits than its factorization.

1228961422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198027.

The product of its digits is 27648, while the sum is 37.

The square root of 1228961422 is about 35056.5460648935. The cubic root of 1228961422 is about 1071.1396196428.

The spelling of 1228961422 in words is "one billion, two hundred twenty-eight million, nine hundred sixty-one thousand, four hundred twenty-two".