1923857034 has 64 divisors (see below), whose sum is σ = 4406814720. Its totient is φ = 554227520.

The previous prime is 1923856997. The next prime is 1923857041. The reversal of 1923857034 is 4307583291.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 249712 + ... + 257300.

It is an arithmetic number, because the mean of its divisors is an integer number (68856480).

Almost surely, 2^1923857034 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1923857034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2203407360).

1923857034 is an abundant number, since it is smaller than the sum of its proper divisors (2482957686).

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

1923857034 is a wasteful number, since it uses less digits than its factorization.

1923857034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7795.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 1923857034 is about 43861.7946965238. The cubic root of 1923857034 is about 1243.7247166262.

The spelling of 1923857034 in words is "one billion, nine hundred twenty-three million, eight hundred fifty-seven thousand, thirty-four".