806240520 has 128 divisors (see below), whose sum is σ = 2693865600. Its totient is φ = 214486272.

The previous prime is 806240489. The next prime is 806240527. The reversal of 806240520 is 25042608.

806240520 is a `hidden beast` number, since 80 + 62 + 4 + 0 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (806240527) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 737094 + ... + 738186.

It is an arithmetic number, because the mean of its divisors is an integer number (21045825).

Almost surely, 2^806240520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 806240520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1346932800).

806240520 is an abundant number, since it is smaller than the sum of its proper divisors (1887625080).

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

806240520 is a wasteful number, since it uses less digits than its factorization.

806240520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796 (or 1786 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 806240520 is about 28394.3747950188. The cubic root of 806240520 is about 930.7253446372.

The spelling of 806240520 in words is "eight hundred six million, two hundred forty thousand, five hundred twenty".