811009330 has 8 divisors (see below), whose sum is σ = 1459816812. Its totient is φ = 324403728.

The previous prime is 811009307. The next prime is 811009343. The reversal of 811009330 is 33900118.

It can be written as a sum of positive squares in 2 ways, for example, as 805254129 + 5755201 = 28377^2 + 2399^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×811009330² = 1315472266694097800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 811009295 and 811009304.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40550457 + ... + 40550476.

Almost surely, 2^811009330 is an apocalyptic number.

811009330 is a deficient number, since it is larger than the sum of its proper divisors (648807482).

811009330 is a wasteful number, since it uses less digits than its factorization.

811009330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81100940.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 811009330 is about 28478.2255416309. The cubic root of 811009330 is about 932.5567790970.

Adding to 811009330 its reverse (33900118), we get a palindrome (844909448).

The spelling of 811009330 in words is "eight hundred eleven million, nine thousand, three hundred thirty".