1840700345 has 16 divisors (see below), whose sum is σ = 2411149248. Its totient is φ = 1337855040.

The previous prime is 1840700317. The next prime is 1840700359. The reversal of 1840700345 is 5430070481.

It is not a de Polignac number, because 1840700345 - 2⁸ = 1840700089 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86507 + ... + 105663.

It is an arithmetic number, because the mean of its divisors is an integer number (150696828).

Almost surely, 2^1840700345 is an apocalyptic number.

It is an amenable number.

1840700345 is a deficient number, since it is larger than the sum of its proper divisors (570448903).

1840700345 is a wasteful number, since it uses less digits than its factorization.

1840700345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20920.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 1840700345 is about 42903.3838409047. The cubic root of 1840700345 is about 1225.5405849538.

The spelling of 1840700345 in words is "one billion, eight hundred forty million, seven hundred thousand, three hundred forty-five".