1890850816 has 48 divisors (see below), whose sum is σ = 3979848600. Its totient is φ = 895647744.

The previous prime is 1890850807. The next prime is 1890850817. The reversal of 1890850816 is 6180580981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1890850817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14616 + ... + 63208.

Almost surely, 2^1890850816 is an apocalyptic number.

1890850816 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 1890850816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1989924300).

1890850816 is an abundant number, since it is smaller than the sum of its proper divisors (2088997784).

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

1890850816 is an equidigital number, since it uses as much as digits as its factorization.

1890850816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48634 (or 48614 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 46.

The square root of 1890850816 is about 43483.9144512083. The cubic root of 1890850816 is about 1236.5710888548.

The spelling of 1890850816 in words is "one billion, eight hundred ninety million, eight hundred fifty thousand, eight hundred sixteen".