810027040 has 24 divisors (see below), whose sum is σ = 1913689260. Its totient is φ = 324010752.

The previous prime is 810027013. The next prime is 810027047. The reversal of 810027040 is 40720018.

It can be written as a sum of positive squares in 2 ways, for example, as 731810704 + 78216336 = 27052^2 + 8844^2 .

It is a super-2 number, since 2×810027040² = 1312287611062323200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (810027047) 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, 2531175 + ... + 2531494.

Almost surely, 2^810027040 is an apocalyptic number.

810027040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

810027040 is an abundant number, since it is smaller than the sum of its proper divisors (1103662220).

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

810027040 is a wasteful number, since it uses less digits than its factorization.

810027040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5062684 (or 5062676 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 810027040 is about 28460.9739819283. The cubic root of 810027040 is about 932.1801244568.

Adding to 810027040 its reverse (40720018), we get a palindrome (850747058).

The spelling of 810027040 in words is "eight hundred ten million, twenty-seven thousand, forty".