1840073705 has 8 divisors (see below), whose sum is σ = 2215948104. Its totient is φ = 1466819200.

The previous prime is 1840073699. The next prime is 1840073713. The reversal of 1840073705 is 5073700481.

It can be written as a sum of positive squares in 4 ways, for example, as 665846416 + 1174227289 = 25804^2 + 34267^2 .

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

It is not a de Polignac number, because 1840073705 - 2⁴ = 1840073689 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 653426 + ... + 656235.

It is an arithmetic number, because the mean of its divisors is an integer number (276993513).

Almost surely, 2^1840073705 is an apocalyptic number.

It is an amenable number.

1840073705 is a deficient number, since it is larger than the sum of its proper divisors (375874399).

1840073705 is a wasteful number, since it uses less digits than its factorization.

1840073705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309947.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 1840073705 is about 42896.0802987872. The cubic root of 1840073705 is about 1225.4014966046.

The spelling of 1840073705 in words is "one billion, eight hundred forty million, seventy-three thousand, seven hundred five".