805680744 has 32 divisors (see below), whose sum is σ = 2197311840. Its totient is φ = 244145600.

The previous prime is 805680691. The next prime is 805680763. The reversal of 805680744 is 447086508.

It is a super-2 number, since 2×805680744² = 1298242922504787072, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 805680696 and 805680705.

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, 1525647 + ... + 1526174.

It is an arithmetic number, because the mean of its divisors is an integer number (68665995).

Almost surely, 2^805680744 is an apocalyptic number.

It is an amenable number.

805680744 is an abundant number, since it is smaller than the sum of its proper divisors (1391631096).

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

805680744 is a wasteful number, since it uses less digits than its factorization.

805680744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3051841 (or 3051837 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 805680744 is about 28384.5159197757. The cubic root of 805680744 is about 930.5098926635.

The spelling of 805680744 in words is "eight hundred five million, six hundred eighty thousand, seven hundred forty-four".