813408260 has 48 divisors (see below), whose sum is σ = 1955802240. Its totient is φ = 278365440.

The previous prime is 813408257. The next prime is 813408263. The reversal of 813408260 is 62804318.

It is an interprime number because it is at equal distance from previous prime (813408257) and next prime (813408263).

It is not an unprimeable number, because it can be changed into a prime (813408263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74555 + ... + 84765.

It is an arithmetic number, because the mean of its divisors is an integer number (40745880).

Almost surely, 2^813408260 is an apocalyptic number.

It is an amenable number.

813408260 is an abundant number, since it is smaller than the sum of its proper divisors (1142393980).

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

813408260 is a wasteful number, since it uses less digits than its factorization.

813408260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10796 (or 10794 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 813408260 is about 28520.3131118857. The cubic root of 813408260 is about 933.4753613226.

The spelling of 813408260 in words is "eight hundred thirteen million, four hundred eight thousand, two hundred sixty".