811480440 has 32 divisors (see below), whose sum is σ = 2434441680. Its totient is φ = 216394752.

The previous prime is 811480429. The next prime is 811480441. The reversal of 811480440 is 44084118.

811480440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 811480398 and 811480407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (811480441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3381049 + ... + 3381288.

Almost surely, 2^811480440 is an apocalyptic number.

It is an amenable number.

811480440 is an abundant number, since it is smaller than the sum of its proper divisors (1622961240).

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

811480440 is a wasteful number, since it uses less digits than its factorization.

811480440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6762351 (or 6762347 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 811480440 is about 28486.4957479856. The cubic root of 811480440 is about 932.7373161826.

The spelling of 811480440 in words is "eight hundred eleven million, four hundred eighty thousand, four hundred forty".