805734720 has 336 divisors, whose sum is σ = 3355043328. Its totient is φ = 173260800.

The previous prime is 805734707. The next prime is 805734749. The reversal of 805734720 is 27437508.

805734720 is a `hidden beast` number, since 80 + 573 + 4 + 7 + 2 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 341545 + ... + 343895.

It is an arithmetic number, because the mean of its divisors is an integer number (9985248).

Almost surely, 2^805734720 is an apocalyptic number.

805734720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 805734720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1677521664).

805734720 is an abundant number, since it is smaller than the sum of its proper divisors (2549308608).

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

805734720 is a wasteful number, since it uses less digits than its factorization.

805734720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2398 (or 2385 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 805734720 is about 28385.4667039314. The cubic root of 805734720 is about 930.5306718123.

The spelling of 805734720 in words is "eight hundred five million, seven hundred thirty-four thousand, seven hundred twenty".