1886620416 has 72 divisors (see below), whose sum is σ = 5041681344. Its totient is φ = 626304000.

The previous prime is 1886620391. The next prime is 1886620423. The reversal of 1886620416 is 6140266881.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187875 + ... + 197661.

It is an arithmetic number, because the mean of its divisors is an integer number (70023352).

Almost surely, 2^1886620416 is an apocalyptic number.

1886620416 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 1886620416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2520840672).

1886620416 is an abundant number, since it is smaller than the sum of its proper divisors (3155060928).

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

1886620416 is an equidigital number, since it uses as much as digits as its factorization.

1886620416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10057 (or 10043 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 1886620416 is about 43435.2439385345. The cubic root of 1886620416 is about 1235.6482068744.

The spelling of 1886620416 in words is "one billion, eight hundred eighty-six million, six hundred twenty thousand, four hundred sixteen".