1228419776 has 14 divisors (see below), whose sum is σ = 2437645620. Its totient is φ = 614209856.

The previous prime is 1228419763. The next prime is 1228419793. The reversal of 1228419776 is 6779148221.

It is a self number, because there is not a number n which added to its sum of digits gives 1228419776.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9596966 + ... + 9597093.

Almost surely, 2^1228419776 is an apocalyptic number.

1228419776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1228419776 is a deficient number, since it is larger than the sum of its proper divisors (1209225844).

1228419776 is an equidigital number, since it uses as much as digits as its factorization.

1228419776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19194071 (or 19194061 counting only the distinct ones).

The product of its digits is 338688, while the sum is 47.

The square root of 1228419776 is about 35048.8198945414. The cubic root of 1228419776 is about 1070.9822337027.

The spelling of 1228419776 in words is "one billion, two hundred twenty-eight million, four hundred nineteen thousand, seven hundred seventy-six".