1082781810 has 256 divisors, whose sum is σ = 3339325440. Its totient is φ = 249163200.

The previous prime is 1082781809. The next prime is 1082781853. The reversal of 1082781810 is 181872801.

It is a super-2 number, since 2×1082781810² = 2344832896133752200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 8265445 + ... + 8265575.

It is an arithmetic number, because the mean of its divisors is an integer number (13044240).

Almost surely, 2^1082781810 is an apocalyptic number.

1082781810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1082781810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1669662720).

1082781810 is an abundant number, since it is smaller than the sum of its proper divisors (2256543630).

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

1082781810 is a wasteful number, since it uses less digits than its factorization.

1082781810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 36.

The square root of 1082781810 is about 32905.6501227373. The cubic root of 1082781810 is about 1026.8657068744.

Subtracting from 1082781810 its reverse (181872801), we obtain a palindrome (900909009).

The spelling of 1082781810 in words is "one billion, eighty-two million, seven hundred eighty-one thousand, eight hundred ten".