810304405 has 16 divisors (see below), whose sum is σ = 1033896960. Its totient is φ = 607543552.

The previous prime is 810304373. The next prime is 810304409. The reversal of 810304405 is 504403018.

It is not a de Polignac number, because 810304405 - 2⁵ = 810304373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 810304405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810304409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372 + ... + 40258.

It is an arithmetic number, because the mean of its divisors is an integer number (64618560).

Almost surely, 2^810304405 is an apocalyptic number.

810304405 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

810304405 is a deficient number, since it is larger than the sum of its proper divisors (223592555).

810304405 is a wasteful number, since it uses less digits than its factorization.

810304405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40148.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 810304405 is about 28465.8462898962. The cubic root of 810304405 is about 932.2865096440.

The spelling of 810304405 in words is "eight hundred ten million, three hundred four thousand, four hundred five".