1840973812 has 24 divisors (see below), whose sum is σ = 3356165120. Its totient is φ = 882614880.

The previous prime is 1840973803. The next prime is 1840973851. The reversal of 1840973812 is 2183790481.

It is a super-2 number, since 2×1840973812² = 6778369152939622688, 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 (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54588 + ... + 81619.

Almost surely, 2^1840973812 is an apocalyptic number.

It is an amenable number.

1840973812 is a deficient number, since it is larger than the sum of its proper divisors (1515191308).

1840973812 is a wasteful number, since it uses less digits than its factorization.

1840973812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136351 (or 136349 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 1840973812 is about 42906.5707322317. The cubic root of 1840973812 is about 1225.6012735050.

The spelling of 1840973812 in words is "one billion, eight hundred forty million, nine hundred seventy-three thousand, eight hundred twelve".