811456530 has 16 divisors (see below), whose sum is σ = 1947495744. Its totient is φ = 216388400.

The previous prime is 811456463. The next prime is 811456531. The reversal of 811456530 is 35654118.

It is a junction number, because it is equal to n+sod(n) for n = 811456491 and 811456500.

It is not an unprimeable number, because it can be changed into a prime (811456531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13524246 + ... + 13524305.

It is an arithmetic number, because the mean of its divisors is an integer number (121718484).

Almost surely, 2^811456530 is an apocalyptic number.

811456530 is an abundant number, since it is smaller than the sum of its proper divisors (1136039214).

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

811456530 is a wasteful number, since it uses less digits than its factorization.

811456530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27048561.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 811456530 is about 28486.0760723551. The cubic root of 811456530 is about 932.7281551615.

The spelling of 811456530 in words is "eight hundred eleven million, four hundred fifty-six thousand, five hundred thirty".