1842840840 has 64 divisors (see below), whose sum is σ = 5539959360. Its totient is φ = 490407680.

The previous prime is 1842840803. The next prime is 1842840863. The reversal of 1842840840 is 480482481.

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, 43282 + ... + 74558.

It is an arithmetic number, because the mean of its divisors is an integer number (86561865).

Almost surely, 2^1842840840 is an apocalyptic number.

1842840840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1842840840 is an abundant number, since it is smaller than the sum of its proper divisors (3697118520).

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

1842840840 is a wasteful number, since it uses less digits than its factorization.

1842840840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31782 (or 31778 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 39.

The square root of 1842840840 is about 42928.3221195518. The cubic root of 1842840840 is about 1226.0154490130.

The spelling of 1842840840 in words is "one billion, eight hundred forty-two million, eight hundred forty thousand, eight hundred forty".