1840807992 has 16 divisors (see below), whose sum is σ = 4602020040. Its totient is φ = 613602656.

The previous prime is 1840807987. The next prime is 1840808003. The reversal of 1840807992 is 2997080481.

It is a super-2 number, since 2×1840807992² = 6777148126822144128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38350143 + ... + 38350190.

Almost surely, 2^1840807992 is an apocalyptic number.

1840807992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1840807992 is an abundant number, since it is smaller than the sum of its proper divisors (2761212048).

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

1840807992 is a wasteful number, since it uses less digits than its factorization.

1840807992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76700342 (or 76700338 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 48.

The square root of 1840807992 is about 42904.6383506492. The cubic root of 1840807992 is about 1225.5644749904.

The spelling of 1840807992 in words is "one billion, eight hundred forty million, eight hundred seven thousand, nine hundred ninety-two".