1219066928 has 10 divisors (see below), whose sum is σ = 2361942204. Its totient is φ = 609533456.

The previous prime is 1219066921. The next prime is 1219066949. The reversal of 1219066928 is 8296609121.

It is a super-2 number, since 2×1219066928² = 2972248349886714368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1219066921) 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 as a sum of consecutive naturals, namely, 38095826 + ... + 38095857.

Almost surely, 2^1219066928 is an apocalyptic number.

It is an amenable number.

1219066928 is a deficient number, since it is larger than the sum of its proper divisors (1142875276).

1219066928 is an equidigital number, since it uses as much as digits as its factorization.

1219066928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76191691 (or 76191685 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 1219066928 is about 34915.1389514634. The cubic root of 1219066928 is about 1068.2572521551.

The spelling of 1219066928 in words is "one billion, two hundred nineteen million, sixty-six thousand, nine hundred twenty-eight".