810841960 has 16 divisors (see below), whose sum is σ = 1824394500. Its totient is φ = 324336768.

The previous prime is 810841919. The next prime is 810841961. The reversal of 810841960 is 69148018.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 779414724 + 31427236 = 27918^2 + 5606^2 .

It is not an unprimeable number, because it can be changed into a prime (810841961) 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, 10135485 + ... + 10135564.

Almost surely, 2^810841960 is an apocalyptic number.

It is an amenable number.

810841960 is an abundant number, since it is smaller than the sum of its proper divisors (1013552540).

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

810841960 is a wasteful number, since it uses less digits than its factorization.

810841960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20271060 (or 20271056 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 810841960 is about 28475.2868291085. The cubic root of 810841960 is about 932.4926233343.

Adding to 810841960 its reverse (69148018), we get a palindrome (879989978).

It can be divided in two parts, 810841 and 960, that added together give a square (811801 = 901²).

The spelling of 810841960 in words is "eight hundred ten million, eight hundred forty-one thousand, nine hundred sixty".