1917323934 has 16 divisors (see below), whose sum is σ = 4036471680. Its totient is φ = 605470680.

The previous prime is 1917323923. The next prime is 1917323957. The reversal of 1917323934 is 4393237191.

It is a super-2 number, since 2×1917323934² = 7352262135778472712, which contains 22 as substring.

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, 8409202 + ... + 8409429.

It is an arithmetic number, because the mean of its divisors is an integer number (252279480).

Almost surely, 2^1917323934 is an apocalyptic number.

1917323934 is an abundant number, since it is smaller than the sum of its proper divisors (2119147746).

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

1917323934 is a wasteful number, since it uses less digits than its factorization.

1917323934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16818655.

The product of its digits is 122472, while the sum is 42.

The square root of 1917323934 is about 43787.2576670428. The cubic root of 1917323934 is about 1242.3152922817.

The spelling of 1917323934 in words is "one billion, nine hundred seventeen million, three hundred twenty-three thousand, nine hundred thirty-four".