1840381776 has 160 divisors (see below), whose sum is σ = 5485898880. Its totient is φ = 590229504.

The previous prime is 1840381769. The next prime is 1840381793. The reversal of 1840381776 is 6771830481.

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 31 ways as a sum of consecutive naturals, for example, 1549855 + ... + 1551041.

It is an arithmetic number, because the mean of its divisors is an integer number (34286868).

Almost surely, 2^1840381776 is an apocalyptic number.

1840381776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1840381776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2742949440).

1840381776 is an abundant number, since it is smaller than the sum of its proper divisors (3645517104).

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

1840381776 is a wasteful number, since it uses less digits than its factorization.

1840381776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338 (or 1326 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 1840381776 is about 42899.6710476899. The cubic root of 1840381776 is about 1225.4698796622.

The spelling of 1840381776 in words is "one billion, eight hundred forty million, three hundred eighty-one thousand, seven hundred seventy-six".