813760340 has 24 divisors (see below), whose sum is σ = 1709740032. Its totient is φ = 325343520.

The previous prime is 813760331. The next prime is 813760379. The reversal of 813760340 is 43067318.

It is a junction number, because it is equal to n+sod(n) for n = 813760297 and 813760306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36845 + ... + 54635.

It is an arithmetic number, because the mean of its divisors is an integer number (71239168).

Almost surely, 2^813760340 is an apocalyptic number.

It is an amenable number.

813760340 is an abundant number, since it is smaller than the sum of its proper divisors (895979692).

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

813760340 is a wasteful number, since it uses less digits than its factorization.

813760340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20087 (or 20085 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 813760340 is about 28526.4848868556. The cubic root of 813760340 is about 933.6100253912.

The spelling of 813760340 in words is "eight hundred thirteen million, seven hundred sixty thousand, three hundred forty".