1840045678 has 8 divisors (see below), whose sum is σ = 2880071568. Its totient is φ = 880021824.

The previous prime is 1840045667. The next prime is 1840045681. The reversal of 1840045678 is 8765400481.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20000451 + ... + 20000542.

It is an arithmetic number, because the mean of its divisors is an integer number (360008946).

Almost surely, 2^1840045678 is an apocalyptic number.

1840045678 is a deficient number, since it is larger than the sum of its proper divisors (1040025890).

1840045678 is a wasteful number, since it uses less digits than its factorization.

1840045678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40001018.

The product of its (nonzero) digits is 215040, while the sum is 43.

The square root of 1840045678 is about 42895.7536126829. The cubic root of 1840045678 is about 1225.3952750238.

The spelling of 1840045678 in words is "one billion, eight hundred forty million, forty-five thousand, six hundred seventy-eight".