1840768518 has 16 divisors (see below), whose sum is σ = 3686797296. Its totient is φ = 612712800.

The previous prime is 1840768487. The next prime is 1840768541. The reversal of 1840768518 is 8158670481.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214621 + ... + 223032.

It is an arithmetic number, because the mean of its divisors is an integer number (230424831).

Almost surely, 2^1840768518 is an apocalyptic number.

1840768518 is an abundant number, since it is smaller than the sum of its proper divisors (1846028778).

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

1840768518 is a wasteful number, since it uses less digits than its factorization.

1840768518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438359.

The product of its (nonzero) digits is 430080, while the sum is 48.

The square root of 1840768518 is about 42904.1783279904. The cubic root of 1840768518 is about 1225.5557146565. Note that the first 3 decimals are identical.

The spelling of 1840768518 in words is "one billion, eight hundred forty million, seven hundred sixty-eight thousand, five hundred eighteen".