1219918096 has 20 divisors (see below), whose sum is σ = 2502626652. Its totient is φ = 574078976.

The previous prime is 1219918087. The next prime is 1219918121. The reversal of 1219918096 is 6908199121.

It can be written as a sum of positive squares in 2 ways, for example, as 866478096 + 353440000 = 29436^2 + 18800^2 .

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 3 ways as a sum of consecutive naturals, for example, 2242225 + ... + 2242768.

Almost surely, 2^1219918096 is an apocalyptic number.

1219918096 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1219918096 is an abundant number, since it is smaller than the sum of its proper divisors (1282708556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1219918096 is a wasteful number, since it uses less digits than its factorization.

1219918096 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4485018 (or 4485012 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 46.

The square root of 1219918096 is about 34927.3259211180. The cubic root of 1219918096 is about 1068.5058179036.

The spelling of 1219918096 in words is "one billion, two hundred nineteen million, nine hundred eighteen thousand, ninety-six".