1834073778 has 8 divisors (see below), whose sum is σ = 3668147568. Its totient is φ = 611357924.

The previous prime is 1834073777. The next prime is 1834073783. The reversal of 1834073778 is 8773704381.

It is a happy number.

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

1834073778 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (1834073777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152839476 + ... + 152839487.

It is an arithmetic number, because the mean of its divisors is an integer number (458518446).

Almost surely, 2^1834073778 is an apocalyptic number.

1834073778 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1834073778 is a wasteful number, since it uses less digits than its factorization.

1834073778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305678968.

The product of its (nonzero) digits is 790272, while the sum is 48.

The square root of 1834073778 is about 42826.0875868903. The cubic root of 1834073778 is about 1224.0681577557.

The spelling of 1834073778 in words is "one billion, eight hundred thirty-four million, seventy-three thousand, seven hundred seventy-eight".