1919433068 has 24 divisors (see below), whose sum is σ = 3848558112. Its totient is φ = 820537344.

The previous prime is 1919433031. The next prime is 1919433073. The reversal of 1919433068 is 8603349191.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75221 + ... + 97452.

It is an arithmetic number, because the mean of its divisors is an integer number (160356588).

Almost surely, 2^1919433068 is an apocalyptic number.

It is an amenable number.

1919433068 is an abundant number, since it is smaller than the sum of its proper divisors (1929125044).

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

1919433068 is a wasteful number, since it uses less digits than its factorization.

1919433068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173081 (or 173079 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 1919433068 is about 43811.3349260211. The cubic root of 1919433068 is about 1242.7706577320.

The spelling of 1919433068 in words is "one billion, nine hundred nineteen million, four hundred thirty-three thousand, sixty-eight".