811054440 has 96 divisors (see below), whose sum is σ = 3012497280. Its totient is φ = 185383296.

The previous prime is 811054423. The next prime is 811054459. The reversal of 811054440 is 44450118.

It is a happy number.

811054440 is a `hidden beast` number, since 8 + 110 + 544 + 4 + 0 = 666.

811054440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 158404 + ... + 163443.

It is an arithmetic number, because the mean of its divisors is an integer number (31380180).

Almost surely, 2^811054440 is an apocalyptic number.

It is an amenable number.

811054440 is an abundant number, since it is smaller than the sum of its proper divisors (2201442840).

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

811054440 is a wasteful number, since it uses less digits than its factorization.

811054440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321871 (or 321864 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 811054440 is about 28479.0175392340. The cubic root of 811054440 is about 932.5740690158.

The spelling of 811054440 in words is "eight hundred eleven million, fifty-four thousand, four hundred forty".