1860848640 has 440 divisors, whose sum is σ = 7632722592. Its totient is φ = 424673280.

The previous prime is 1860848593. The next prime is 1860848641. The reversal of 1860848640 is 468480681.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1860848641) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 2902720 + ... + 2903360.

Almost surely, 2^1860848640 is an apocalyptic number.

1860848640 is a gapful number since it is divisible by the number (10) 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 1860848640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3816361296).

1860848640 is an abundant number, since it is smaller than the sum of its proper divisors (5771873952).

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

1860848640 is an equidigital number, since it uses as much as digits as its factorization.

1860848640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685 (or 658 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 45.

The square root of 1860848640 is about 43137.5548681193. The cubic root of 1860848640 is about 1229.9959547755.

The spelling of 1860848640 in words is "one billion, eight hundred sixty million, eight hundred forty-eight thousand, six hundred forty".