1920860234 has 8 divisors (see below), whose sum is σ = 2889841188. Its totient is φ = 957579840.

The previous prime is 1920860231. The next prime is 1920860281. The reversal of 1920860234 is 4320680291.

It can be written as a sum of positive squares in 2 ways, for example, as 1916250625 + 4609609 = 43775^2 + 2147^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1920860194 and 1920860203.

It is not an unprimeable number, because it can be changed into a prime (1920860231) 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 in 3 ways as a sum of consecutive naturals, for example, 1424297 + ... + 1425644.

Almost surely, 2^1920860234 is an apocalyptic number.

1920860234 is a deficient number, since it is larger than the sum of its proper divisors (968980954).

1920860234 is a wasteful number, since it uses less digits than its factorization.

1920860234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2850280.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 1920860234 is about 43827.6195338054. The cubic root of 1920860234 is about 1243.0785959894.

The spelling of 1920860234 in words is "one billion, nine hundred twenty million, eight hundred sixty thousand, two hundred thirty-four".