1840817056 has 48 divisors (see below), whose sum is σ = 3956415624. Its totient is φ = 837955584.

The previous prime is 1840817047. The next prime is 1840817059. The reversal of 1840817056 is 6507180481.

It can be written as a sum of positive squares in 4 ways, for example, as 872611600 + 968205456 = 29540^2 + 31116^2 .

It is not an unprimeable number, because it can be changed into a prime (1840817059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60 + ... + 60676.

Almost surely, 2^1840817056 is an apocalyptic number.

1840817056 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 1840817056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1978207812).

1840817056 is an abundant number, since it is smaller than the sum of its proper divisors (2115598568).

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

1840817056 is a wasteful number, since it uses less digits than its factorization.

1840817056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60713 (or 60705 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 1840817056 is about 42904.7439801242. The cubic root of 1840817056 is about 1225.5664865162.

The spelling of 1840817056 in words is "one billion, eight hundred forty million, eight hundred seventeen thousand, fifty-six".