1834605978 has 32 divisors (see below), whose sum is σ = 3790026240. Its totient is φ = 591425280.

The previous prime is 1834605977. The next prime is 1834605979. The reversal of 1834605978 is 8795064381.

It is an interprime number because it is at equal distance from previous prime (1834605977) and next prime (1834605979).

It is a self number, because there is not a number n which added to its sum of digits gives 1834605978.

It is not an unprimeable number, because it can be changed into a prime (1834605973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 484878 + ... + 488646.

It is an arithmetic number, because the mean of its divisors is an integer number (118438320).

Almost surely, 2^1834605978 is an apocalyptic number.

1834605978 is an abundant number, since it is smaller than the sum of its proper divisors (1955420262).

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

1834605978 is a wasteful number, since it uses less digits than its factorization.

1834605978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6422.

The product of its (nonzero) digits is 1451520, while the sum is 51.

The square root of 1834605978 is about 42832.3006386535. The cubic root of 1834605978 is about 1224.1865437735.

The spelling of 1834605978 in words is "one billion, eight hundred thirty-four million, six hundred five thousand, nine hundred seventy-eight".