805740738 has 64 divisors (see below), whose sum is σ = 1942382592. Its totient is φ = 219802880.

The previous prime is 805740707. The next prime is 805740743. The reversal of 805740738 is 837047508.

It is a self number, because there is not a number n which added to its sum of digits gives 805740738.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10195 + ... + 41417.

It is an arithmetic number, because the mean of its divisors is an integer number (30349728).

Almost surely, 2^805740738 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 805740738, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (971191296).

805740738 is an abundant number, since it is smaller than the sum of its proper divisors (1136641854).

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

805740738 is a wasteful number, since it uses less digits than its factorization.

805740738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31279.

The product of its (nonzero) digits is 188160, while the sum is 42.

The square root of 805740738 is about 28385.5727086842. The cubic root of 805740738 is about 930.5329885052.

The spelling of 805740738 in words is "eight hundred five million, seven hundred forty thousand, seven hundred thirty-eight".